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Full text of "Your Computer"

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EMBER 1983 BRITAIN'S BIGGESTSELLING HOME COMPUTER MAGAZINE Vol. 3 No. 12 f 



i 



SPIRIT OF CHRISTMAS TO COME: 

Unwrap presents from the future 
Vic and 64 software survey 
A Choosing printers and 

£100 £400 micros 

Dragon Sky Shield 

BBC caroL 
service 




fe 



S* 




COMPETITION OF THE YEAR 

Dozens of prizes -from a £1,200 
Advance to computer holidays 
. and electronic games 



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UR LATEST BEST SELLER 



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Officially Licenced by 

Available now for the ZX Spectrum, Comnxidore 64 and One 1 
and soon for Dragon 32, Acorn Electron, Atari 400/800 

MORE FUN m MORE CHALL ENGE • MORE EXCITEMENT 



6^1 



&V& 1 




Ralli Buildings, Stanley Street 
Manchester M3 5FD 



Ocean software i» 

available from 

WOOLWORTH 

VVH SMITH, 

John Metroes. 

selected branches of 

LAS KYS, Major 

Department Stores and 

all good softw. re 

dealers. For your 

nearesrstoAist 

phone: 061 -332" 13. 




. „ 



«» 



- . » 



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Software sho 



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Qtiaztmoito: page J 32 






Dam splat; page t68 



Above: ZXS J bubble son. pegs 183. 
Betow The spirit of Chrtstmas to come. 



BacXrtc Globe by Tarty Basset! 
01 328 3861 






74 



COMPETITION: Bumper Christmas Compel U ion! Win i £1200 Advance B! A £400 
Advance A! Actmsion-Atari sets? Fun, fun, fun! 



76 



EDITORIAL AND YOUR LETTERS: A Spectrum owner with technical difficulties; 
Tim Hartncll lambasted, and Vic- 20 load command problem solved 



78 



NEWS: Oh no, it 1 } Trevor; dating game* to embarrass Auntie; new generation machines 
from Japan and plug-in expansion box for the Electron. 



81 



YOUR COMPUTER CHRISTMAS FAIR: Glad tidings of great joy - Your 
Computer's very first Christmas Fair all to itself. We preview the gifts to be bestowed, 



M FIRST BYTES: Our introduction for QT 
micro novices 1 , databases and sorting. 0/ 



COMPUTER CLUB? 

floats down the Cam. 



Paul Bond 




SOFTWARE SHORTLIST: My name is uncle Groucho, you win a fat cigar; or you can 
plumb the depths of Cyrus or drive a big fasi car. The latest commercial software. 

ON THE GRID: A long hard took at what you get for between £100 and £400. Your 
Ccmputer takes 13 machines including the Atari 600XL, Sord and BBC on the road. 

PRINTER SURVEY: From the cheapest £40 black and white thermal primer to a first* 
time review of the Tandy ink-iet full-colour printer. David Home rolls the presses 



COMMODORE SOFTWARE SURVEY: The wide range of software available for 
Commodore's trusty Vic- 20 and the newer CBM-64 leaves Peter Connor breathless. 



128 



THE SPUUT OF CHRISTMAS TO COME: Martin Soble peers through a glass 
darkly into 1984. Morion Jones' grim spectre confronts the makers. 

BBC CHRISTMAS CAROLS: Save the wassail, Andrew Bmdon coaxes tidings of 
comfort and joy from the BBC Micro, Guaranteed to warm the hearts of frozen cherubs. 



132 
143 



SPECTRUM QUAZIMODO: 

Paul Hargrcavcs saves Ezmeralda. 



135 



DRAGON SKY SHIELD: The 

end of Civilisation, by Alan Richards. 



DRAW: A relocatable vector drawing facility a bit like the one on the Spectrum. David 
King puts back into the ZX-81 what the printer routines took our 



148 



VIC TRICKS: Amaze your friends 
with John Ransley's routines. 



153 



ORIC DISASSEMBLER: Mike 
Shacklcton converts mnemonics. 



158 



ATARI INTERRUPTS: Do VBIs leave you blank? Is a DLI liable to give you a long 
face? Chris Lam shows you how to get the Atari to do lots of things at once. 



161 



BBC FRUIT WORM: Mind the bricks and rocks or you will never grow up to be a nice 
bif *l« n / creature, Shingo Sugiuri demonstrates that even a worm will turn. 



168 



CBM-W DAM SLAM: Simon 
Scott drowns the secret state police. 



173 



DRAGON SCREEN KIT: Sound 
and vision by Damian Clancy. 



176 



ZX-81 /SPECTRUM CONVERTER: M C Evans spreads peace and goodwill with a 
routine enabling you to run ZX-81 programs on a Spectrum, 



183 



ZX-81 BUBBLE SORT: Not shell sorting or file inversion. Andy Scott rearranges 
numbers or strings into ascending or descending alphanumericaj order. 



186 



VIC- 20 SAS ASSAULT: Can you 
defeat the attack in P BrabbuVs game 



191 



SCR AM* SI: Philip Harwood 
comes in on a wing and a prayer. 



197 



VIC EXPANSION: Now you can put all that programming from the previous two 
articles into practice. Damian McComb completes his mind-expanding vocabulary. 



202 



BBC HEARTSTOP: John Dawson's continuing story of everyday life in a general 
hospital. Can you keep the patients alive despite impending health cuts? 



205 



RESPONSE FRAME: Tim 

Hartncll reassures worried users. 



209 



SOFTWARE FILE* A festive feast 
of fun Oric, CBM-64+ BBC etc. 



235 



COMPETITION CORNER; The winner of October's competition for a an Atari 
600XL is announced. No brain-teaser this time because of the big competition. 



330 



DATEBASE: Microcomputer events or every conceivable magnitude anywhere in the 
known universe. Let us know of anything happening in your area. 



r OUR COM PUt Eft. MCEMMR 1983 




44 im very sorry about 
your programming 
headache . . .why not call 
at the next counter and 
buy some Aspirin? J^ 



44 I'm afraid we can t 
help you with that fault 
maybe you'd better write 
to the manufacturer! 99 



44 no! we haven't that 
on disk . . . but we have the 
latest DUR AN DURAN.99 



If you want service, sense and 

Computers For 




The shops where people matter: 



AVON 
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flratri Q2,T 731079 

BERKSHIRE 

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CHANNEL ISLANDS 

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44 I'm afraid we don't 
know about word 
Processing, but we have 
todays newspapers. 99 



44 Not We haven't any 
Monitors, but can 1 show 
you how to get great 
pictures from this 
camera? f$ 



44 Never heard of that 
cassette, but we have 
"I Spit On Your Grave' In 
VHSorBETA.Jf 



sound advice, see your local 
All Dealer today! 

You d be amazed at some of the stories you get from shops and 
stores that try hard to be Computer Dealers. 

That's why It's best, if you are serious, to visit a Computer Dealer 
that takes the job of selling computers seriously. 

And its so easy... 
. . . lust visit your local computers for all Dealer today! 

You'll be amazed at the difference it makes. 

Talk about any Computer or peripheral. Ask about software, 
hardware, programming, drives, printers, processors, . . in fact 
anything that interests you in computing. 

One thing you can be sure of: you'll get service, sense and lots 
of sound advice from a computers for all Dealer, 

See for yourself . . .today. 



N IRELAND 

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COMPUTERS 




WHEN IT COMES TO PERSONAL COMPUTER 
SPECTRA VIDEO IS BEYOND ANY COMPARE! 




To the de- 
light of our cus- 
tomers, and the 
dismay of our com 
petrtors. we oow 
proudly present the 
most advanced, most 
capable personal compu- 
ter system awarlaOle to- 
day SpectravrdeQ™'* 
SV-3IB and SV-328 While the SV-318 is 
" everything home computer users were 



waiting 



designed 



for, "the SV-328 is specially 

for the small business that 



doesn't plan to stay chat way " These 2 
computers, too, are beyond any 
comparison in their price range. 

And they do not stand afone 
Seldom, if every, has a new computer 
been supported by so many peripherals 
Of exceptional quality, ail this hardware 
rrdes into you on the crest of the very last 



CPIM compatibility , the SV system 
allows you to take advantage of 
thousands of pre-existing programs And 
with the MSX software compatible 
standard , jointly launched by 
Spectra video™ and most of Japan's 
largest electronics firms, Spearavideo™ 
can take advantage of all software 
developed by other MSX participants. 
Plus, Spectravideo™ is now producing its 
own line of top-quality software Finally, 
the SV system includes severaf innovative 
and interesting accessories that you wjM 
want to use. 

Because of product depth and ease- 
of-operation, the SV system win give you 



MSX 



software 

compatible 

standard 






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For further information contact; 

CK SUPPLIES 

UNfT 5. NORSIOE. OLDMtXON CRESCENT. 

WESTON-SUPER-MARE. AVON 

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When we launched our 
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were n>li£htad. As last 
programs were available 
from Britain's top 
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computer to help your 
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added eight exciting new 
games that cover an even 
wider range, Early- learning 
is easy as children join in 
the fun with the Robot 
Runner, Sum Scruncher, 
Micro Chimp and lots more 
colour graphics. 



ipectruin l8*/« k 



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983 




NEW ATARI 600 XL 



A brtifant new computet from Atari. Baton you choose a compute/, check thta specification. 

* i6K RAM expandable to $4X with one plug-in pack ' 

* B*ternal processor bus for future CP M module 
running CPM2.2 w>th >ti own S4K RAM. 

+ International character *pt 

* 256 colour* - up to \2B d'splityabh at one time 

* 5 text modes and 11 graphics modes 

* ful-frairaJ typewriter -style keyboard. 
it 24K built m BASIC and operating system 
* * specie* function keys. 

* Software) compatible with almost ait 
tititing totrwate tor 400/800 

Price f 153 95 
Price CS9M 
Price £49.95 
Pnce £269.95 
Price £199.95 
Price £299.95 
pet pair Price £13.95 
each Price £24.95 



Atari 60QXL Computer (AF77J, 
Extension RAM Pack tor 6QQXI iAF79Lj 
Program Recorder {AF8QBI 
Disk drive (AFS1C) 
Colour Printer (plain paper, (AF83E} 
Letter-quaMiy Printer (AF82D) 
Joysticks (AC37S, 
Le Stick (AC45Y) 



The Atari 800XL is unlikely to be Mailable before Christmas, 
but <s irt any c*is# ri© ditt$r$ftt ir^m the $qq xi. except: 
ait 64H RAM is built insrde bo* 

Check out Our huge range of software tor Atari 
Ask tot our tree leaflet XH52G 
* Mapltn are »n authorised service centre tor Atari * 




/ 



Join the tJK i 

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user group Se 

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SSfl 84ft for *n 

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POWERFUL CGL M5 



The MS contains one of the most powerful colour 
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simultaneously and J 6K of RAM dedicated to graphics 
alone Driven by the powerful ZSQA main processor, 
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synthesiser The MS cornea complete with BASIC, 
superb handbooks tor beginners and lead to connect 
to almost any standard cassette recorder, 

CGL MS computer (AF64U) Price £ 1 *9 95 

BASIC G - A BASIC with extended and very 
powerful gmphics commands 1KS018) Price £34 95 
Joypads (AtGSY) pet puft Price £?«„95 



J 4 * <*£?«**** 



*5 



' 




tots o' new peripherals and software becoming available now- 
Check with our sates desk for turlher Information. 



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* 64K RAM M rid 3QK ROM BASIC and operating 
system. 

* Eight independently movable sprites 

* 16 colours with 255 border background 
combination* 

* Mm octave muiic synthesiser with 3 votcee. 
waveforms, programmable ADS ft and tutor. 
* Full- travel typewriter style keyboard. 



Commodore 64 Computer fAF55L) 
Cassette Recorder (AF48C, 

Disk Drh* fAFSOEf 

Printer (AF490) 



Price £229-00 
Price £44.95 
Price £229 99 
Price £230.00 




Joysticks (AC37S) 
Le Stick IAC45Y) 



per pair Price £1395 
each Price £24 95 



Rapidly expanding range of software for Commodore 64 
and VIC 20 Ask tor our Ira* leaflet XH52G 



ADD-ONS FOR VIC 20 



Expand your VtC 20 from our large range of peripherals and software For example 
VtC 8K Ft AUK ( AFSZG) Price £29.96 

VIC t6K RAM (AF53HI Price £39.95 



VIC Super Expander 1AG54J) 
VIC Programmer* Aid (AC55X) 
VtC Machine Code Monitor {ACSGt, 



Price £34 95 
Price £34 95 
Price £34.95 



BRITISH-MADE DRAGON 32 



* 32* RAM phis Extended Mtcroeott Colour BASIC in ROM 

* Fast tG-bti**trvcUir*d mkiruprocessor tor high speed 
computing power. 

* Futl-travef typewriter -style keyboard. 

* Can be used with almost arty standard cat telle recorder. 

* Complete with superb BASIC ptogremmlng course- 



ORAO 



Oregon 32 Compute* IAF57M) 
Ca***tto Cable (BC3Uf 

Disk Drive (AF96F) 

,'oyi«cft* (BC3QH) 



Price £175 00 
Price £2,95 
Price £275,00 
per pair Price £14.95 




Large range of software available Ask for our free leaflet XH52G 

MORE EXCELLENT VALUE HIGH 
QUALITY PRODUCTS 

tor us* with many different noma computers 

Floppy Disk (YXB7U, Price £2.50 

C12 Data Cassettes (AF61R) Pack ot 5 Price £1.9$ 

Oust COwr tor Atari 400 (BK88V) Price £3-95 

Dust cover tor Atari 800 (BK89W) Price £3,95 A 

Dust cover tor BBC (BK90X) Price £3-95 Dust cover tot Dragon (BK92A, Price £195 jj^g 

Dust cover tor 64 or VIC20 {BK91 Y) Price £3 95 Oust cover tor Spectrum i8K93B) Price £3 95 

Epson RX90 Printer <AF3oR) Pric* £339 95 

Epson FXBO Printer (AF40T} Price £447 35 

Mapsott Catalogue (XH60O) Price £100 WP| 

li)mlr^^^^ i^aaaaa^-^ MapUn Catalogue (CAOiB)' Price £ I 65 'y 





v °uwc 



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R I 



903 



DORIC COMPUTER SERVICES PRESENT 

THE ORACLE'S 
CAVE 



The Oracle's Cave is an exciting adventure game containing a unique blend oi HIGH RESOLUTION 
ANIMATED GRAPHICS and text which has been designed especially tor the 

48K SPECTRUM 

It's many features include: 

* Continuously displayed high resolution graphics. 

* Lint* limil or 5 days on every adventure. 

* Completely new cave layout, molester position and event sequence generated for every game, 

* All monsters, articles and locations depicted to a level of detail that pushes SPECTRUM graphics to the 
limit. 

"THE CLOSEST YET TO A TRUE ANIMATED GRAPHIC ADVENTURE . . . 
. , . EXCELLENT VALUE FOR MONEY" Popular Computing Weekly. 



Available from WH SMITHS, BOOTS and 
leading retailers 
Trade enquiries welcome — 

Telephone 0533 314345 or 
0533 543856 



other 




Also available direct at 17-95 (postage and 
packing free) from: 

DORIC COMPUTEH SERVICES 
3 THE OASIS, 
GLENF1ELD, 
LEICESTER LE3 8QS 



PHEENIX 




I KfW i I 



You are in command of the i tar- destroyer 
Phoenix Warms of robot xoui birds attic It you 
Beautiful egg* magically appear, iben hatch into 
deadly Phoemx war bird* Can you iurvive to 'ace 
the htiviiy guarded flagship ' 

* S Kr«m * S CkiH k»eli * demoniifiuon mode 

* full sound *ff«ti ■ musit • flapping birch 

* Kemps ton & AGr |0^i!(k compatible * !0O%nvc 



^ t £5*50 

for any 16* or iry 48 k 
ZX SPECTRUM 

OtALfR (MgUiKlfS WELCOil 



lint (hMu< / P O 19 

M eg u dodo Software 

16 While Road 

Sutton Coidfield 

W Midlands B72 I NO 






To all purchasers 

of Sinclair 

Small Business Accounts 

for ZX Spectrum 



It has come to our attention that there is an 
error in some copies of the above program . We are 

anxious to minimise the inconvenience to 

purchasers and are therefore taking prompt action 

to inform you and otter a replacement 

free of charge. 

If you have a copy of this program and it 

bears the code 667S on the box spine please store 

any data on a separate cassette and then 

return the product with its packaging and user 

manual and your name and address to: 

Sinclair Research Ltd, 
Stanhope Road, 

Camberley 
Surrey, GUI 5 3PS. 

We will send you a replacement copy. 



10 VOUB COMPUTER. 0€CEM8€R 1983 










• Britain's No 1 
range of 
products 

• Check our UK 
dealer network 
for your nearest 
outlet 

• After sales 
service from our 
own factory and 
engineers 

It's our aim to provide satisfaction at 
the sign of the Big M'. By providing 
focal distributors, best prices and 
service, we offer you the most If you 
dont see it in our ad ask your focal 
distributor, or write to our Head 
Office for full kst 

All pnces include \/A T 

All prices correct at time of going to 

press, but subject to change 

All products normally In stock 
but to prevent a wasted 
Journey phone your local 
dealer first before celling. 









QQQmmSMJ 




A full colour 32K ROM computer with 
text and graphics modes up to 
640 x 256 graphics and 80 column text 
screen, extended Microsoft basic, built 
in assembler I MHZ and tube interface, 
sideways ROM, RS 423, A/D converter. 

BBC Model B £399 




ALSO AVAILABLE 

BBC Model B + Econet 

BBC Model B + Disk Interface 

BBC Model B + Disk Interface + Econet 

DATA BASE RETRIEVAL 

AND INFORMATION PACKAGE 

BBC and Disk Interface Disk Drive, 
Green Monitor, Dot Matrix printer, 
Data Base program complete with all 
cables, manuals and formatting disk. 

£1075 




COMMODORE 



CASSETTE UNIT 


£44.95 


DISK DRIVE 1541 


£229.00 


PRINTER 151 5 


£230.00 


JOYSTICK 13 N 


£7,50 


PADDLES J3 12 


€13.50 



Software 

UKsNo I range of software 
Check availability witn your 




SINCLAIR SOFTWARE 
- SEND FOR LIST 



I 






MASTER 
CLASS VID 

finding * hard m cure to tmra wm uw 
manuals. Maaet Class utdros w* t*r 
you sttp Dy step #W make frst ome 
ConipuCFig much mon* enjoy.**? Hwor 
cuy lor a very low cost 

TORCH Z80 £03930 

DtiJc pack ItnckjdrM} perfKi software) 

JUPITER ACE £69.95 



* 



s$i 






Printers 

SEIKOSHA GP 1 00 £21 4.99 

SEIKOSHA GP2S0 £276.00 

EPSON RX80 £339.25 

EPSON FXBO 160 CDS £454.25 



OLIVETTI SPARKJET 
PRINTER 



£419.75 



SMITH CORONA DAVHEEL 

£459.00 

TEC STARWRITER 40 CDS 

£1265.00 

JUKJ6100DAVHEEL £458.85 

STAR MCP40 COLOUR 
PRINTER £17135 



STARDPS10 



£275.00 




LYNX 

LYNX 96K £299.00 

JOYSTICK INTERFACE £13.95 
SERyV. INTERFACE £3.99 

CENTRONICS INTERFACE 

£49.95 

Workstation 

Designed to take 
computer, disk drive, 
printer and paper, 
Robustly built for school, 
business or home use, 

700mm £11 8.00 
1 1 00mm £138.00. 



Look out for our 
special Christmas 
ZX81 pack. 

ZX81 

IK RAM. uwortds Uxgestntong 
computet, 1 6K «pararcn pack, masses 
of software. Basic language, many 
expansions mchjSng keyboard memory 
primer, high resolution graphics 

£39.95 



T6KRAM 
ZX PRINTERS 
(NO PSUJ 



£29.95 



£39.95 



SINCLAIR SOFTWARE 

-SEND FOR LIST 



Think you're good enough to 
become a &g M" distributor? 
Full back up given, Write for 
details and application forms to 

Steve Macf arlane 
Micro Management 
16 Princes St, Ipswich 
Tel: |0473 j 219441 



SINCLAIR 

SPECTRUM 

1 6K and 4SC base, colour, text and 
qtaphkx vast range of software 
including education, prir«er, bmft-in 
speaker You can build a wry good 
system at a very good pnte 

ZX SPECTRUM 48K 

£129.95 
ZX SPECTRUM J6K 

€99.95 



COMMODORE 64 
-64KRAM, 

colour, sophisticated ROM. -'RAM user. 
IK ouanea applications, disk drives 
available, sound, UHF/composrte video, 
proven basic language, exceptional 
value, btgri resolution graphics, many 
"add-ons" available, printrrv 

£229.00 



' 




ORIC 



4SK. colour, Ngn resolution graphics 
240 * 200, an 28 + 40, pre- 
programmed sound, uoer-deftned 
keyboard graph**, non touch- sensitive 
keyboard, mfcroaoft type basic wirh 
powerful eKtenswnt RG&UHF. 
standard cassette Interface, parallel 
printer output, several per rTerals 
available, printers available modems and 
PPESTR learning) 

ORIC-1 48K £139.95 




LYNX 

LYNX 48 

48K standard, expandable to ? 92K 
colour. 57 key typewriter keyboard. 
CP ' M compatible, serial pen. nigh 
resolution graphics 265 X 248. digital'' 
analogue sound converter. RG8.UHF 
composite video. RS232/paraiieL 
cassette 

£224.99 



DRAGON 



DRAGON 32 

32K RAM, colour, extended basic, sound 
5 octaves Z55 tones, vast software 
range, typewriter keyboard, standard 
cassette drive, htgh resolution graphics. 
256 x 192, text 16 + 32, kx*s Wee a 
British worldbeater 

£174.99 




MEMOTECH 
MTX SERIES 

Powerful fast ZS0 computers wttfi T6K 
video RAM p*ja 32K or 64K user RAM 
1 500 or 5 ) 2} - both expandable to 
512* 

* rnwgrai joystick ports 12} - cassette 
port (2400 bd) - Centronics interface - 
IV + sound - composite video monitor 
- hi-fi - cartridge pom - expansion but. 
•ROM contains ASSEMBLER/ 
DISASSEMBLE!*, PROGRAM MONITOR. 
NODDY & extended BASIC wnh 
commands for 32 SPATES, 4 CH 
SOUND, 40 * 24 TEXT or 32 *24 TEXT 
with 256 x 192 PIXELS each in 
COLOURS; B virtual screens 

MTX 500: £275 
MTXS12:£315 



Up to £1000 Instant credit available through selected Big 'M' dealers. 
Ask for details. Financed by Lombard Trlclty f APR). 

AGENTS 



Muluiiiib 

J7J374Gecrarit 

UKfrllJftS 



Cancan compute* Centtr 
WQ6 6&I7I 



A£f fulfil COfflpuCe* Cerfte 
9*' iter V DHSUM3I 

WCifHmlLli] 

3?SLnfo(df**IW 
061 12B0OUt 



IMTurrui Mem IVqphrrM 

233 London *Md W Croydon 
0l«100*C 

Rrtt Syrr ComfuWl 
IOM#iC(«f 
London M 03W 36S7f» 



i7«tan)nSi 
WW 40/317 

?S MMd SqurrOM.' S»M 



mrMMHSHqi 
lhOMT0*n« 075JTZIB5I 



4MAfCa^M»ig 

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OurtrteStOMteUllA 

TnrWhwnrCentie 

ilM partum Aft 0B* **JH 

Btirtop i itortfwd 
JClxreft-ii D771WM0I 



Mtcnailore 

ijbwntst 
«i)5w; 



DO« HHrmmorul Confute* Centre Computer Cenrjp r+Vtepvoe! 



31 1l*fT#yj A} f*nyr*0&56 7J09W 



Hnul Catvutm Ltd 

J4PMl*w0^JWI|# 

Compute* Syifem (Tortuyi 

PWfT* Si 0HCMS ftS65 



J 8- 1 * TTr CMrKtri Aftj* 
WfriS 030*212433 

C0#CuterCcnm 

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23 5«V#i Une Q4S3 Hll 5 



2bArU*M04«?267<?7 



*!#Crtj Mragenvrw 
U*ntnSi£H73 99)fl 



IMdci 
GwwiSl(H73H}»&5 



£bl Wfcl 



Djbntorr 

KhJWnon^ 01 440 11991 



Eur> Computer Centre 
MnuhfW»*St 0245 3W702 



IT* Conr|ju*r Cpt*t 

37 WtOtmon » Q424 IflW 

inim^jwm 

the Computer Cerw IBM 
22 Market Coumwa Viapt 
HpwrtanJ^eti CMps 
0*j?68?2H 



Computing Wijnwrll 

97 Wdj-hoiT SL, *l Ot «U0173 

Tnr Atfcjntrrt Trim*™ Cell* 
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if. 54 Bnegn** PM 

01 301 ur? 



Micro Management Head Office: 16 Princes Street Ipswich Suffolk Tel: 0473 219461 









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GRN WIED W TEl ¥ ORG W 8LU ▼ tfl 






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Colour Genie is now one ol the 
most successful home computers 
mod you con buy 

Noi just because of price 

But simply Decause more 

families ore realising mat a 
computer with less ail round 
performance man Ihe 32K Colour 
Genie is a waste ol money a ndnoi 
So rewarding 

After a 1 1 you cannot tei f wtiot 
will interest you most until you « 
tried everything computers can oiler 
you 

Some others ask you to compare 
the lectmteal lads Welltogrve 
them all a surprise we ve published 
some of 32K Colour Genie s most 
important features 

But far me toss technical, here 
are o few other important questions 
and answers 

WHYYOUCAN-TaWACOLQUR 
GENIE AT THE CORNER SHOP 

Vou see, ALL computers ore more 
complex than they fir* appear 




So when you start computing, you 
do need a brf ol help A Saturday shop 
assistant is NOT the right parson to 
goto 

To ensure That you obtain the 
answers to any doubts or questions you 
may have abou l computers, a list of the 
many Genie specialists appears ftelow 
Bui if you have any problem who r- 
soew. get in touch wtfti us at Lowe 
Computers - we're bete to help, 



WHYQUR32KC AN MrJWAiOJ 

MORE THAN EVEN THE MOST 

RECENT COMPETITORS 

Its easy to quote tup, memory 
numbers like 32K In many other popular 
computers of mot size ii is not so easy <o 
user) oil 

Even some of the newest models let 
you use little more than two minds at the 
usermemofy The omerthud is snatched 
away to dm* me computer 



• Design tfipgncy *J5\olttAMr&a«hK*^ 
tori 



- 16KR0MwimMiciown Coiau BASC 
MnM 

- Form (optional) 

- 256 prerj^ned cn o n j cte rs with l28more 
you can program yoursett A massive 25* 
can be dspjoyed at any one time 

- Repeat operates on oil 63 toys 

- 4 funcf kki keys flwnaS user 
progf ommabte statements 

-Full editing ond tracing, iociiit« tor 
de-buggtig 

- Scry wsotirtw ol3?0 x 200 wHnum and 

araptuct 

■Or 160* 102 individual* addressable 
ousts hi 4 colours 



- Sown display 2$ rows d 40 (TWO** 

■ 1 e colour* (8 M plus ft !»t») 

- 80 commands plus more flxm 40 aropnes. 
a«t!»Ti*ttfe«40ttnifuficfi<irts 

■ 8 octaves mospende'tf or each of 3 
separate sound channel* wrti ^dependent 

■njluni*. dgratwn and enwtops on each 
cfionrm 

• Full syntteswed sound effects «a separata 

TV crHifi output ports 

■ Cartridge based soflvwre 

• Pre^/Viewdata modem Software carmdg* 
boded tor lost syste n access 

-floppy disc system 

- Suoets dueol joysticks, wen mnmc pods 
and two In buttons 



Colour Genie hos live type ot anw> 
toolity that you would expect to Imd on a 
computer costing around £400 It uses 
less man 5% oT RAM giving you as 
much as 30* tor more ecitmg games 
otk) more useful applications 

WHV GOOD PIC TUR ES CAN BE 

MORECQLQUffFULOWTHE 

COLOUR GENIE 

Many other computers offer severe I 
modes These awe high resolutions but 
atacost 

On some, rugn resolution uses 
so mocft RAM mot you get only 
2 colours ond very little memory ten to 
ptoywtth 

But Colour Genie has got other ideas 
to let you have megooa quality picture 
etTeei ot rugh resotulion {320 * 200 tot 
me technical) and full COLOUR 

THIS IS HOW IT WORKS. 

Colour Genie lets you create as many as 
1 28 different shapes thai if tuefcs owcy 
in its memory, m oddrtion Jo me 1 28 
shapes il has permanentty stored (you 
con see 6* ol them on the keys m me 
photograph) 



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ntt)oe«)i*«wr»MeDTicteiuw*witw'w(oi^e?»/Tw i>w ew j« i iM to^ 
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]IJ0JN0TtWgWJto*l*i»^CgTp 1 jig5^cw[tllPJ>^?0ra 

M<6 WTltf* Wlgm MlgDcmnMin 1DW3; gTCU W W iW WWPQBT T j u I [M fc pm ilOaT) 114?fS QtfUH SWPteW S*> (WW? T?33!» PMIl MU ei M 7TCW OH IWff khtel - ftKTO^ S^a fflf>3) H JJ?t I 







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you con men use oil 256 in any order 

to create a full picture "brick- by- brick", 
lor any game or appl icot wn you invent. 

And you can colour each shape m 
any ol me 16 colours and tints eoch 
lime you use ii 

The pixel graphics mode allows line 
plotting and generation of solid shapes 

Checkout our 'PAINT' command, 
tor ramorttoble colour computing 

YOU WANT WORDS AS WELL! 

Sure- Colour Genie won't limit you 
on mot* Text and graphics ore fully 
mnobte 

WHV YOU CAN PLAY AMAZING 
GAMES - AND AMA ZING GRPCE 

Not ontycon you pfay -or mote excit- 
ing gomes You can do ii very noisily too 1 

Colour Genw gives you three inde- 
pendently control led separate channels 
(or 'vcnoes") each with a full range of 8 
octaves 

So you con compose pteosonr 
muse -or drive everyone out of the 
house 1 



Some computers are 
designed as a simple box. 
with severoi untidy add-on 
pieces Nol onty do odd-ons 
add to cost, but they can odd to 
more niggling faults as well 

So Colour Genie contains oil moi s 
necessary to make it work including the 
power ironsformflf, 

if is also made of stronger matefio Is 
than many others, to cope with the mosi 
Doisierous of families 

But Just in cose you find a iQib Do* 
o bit awkward lo cam/ io the car. you 
find it hosgoia built-m carrying handle 4 

Jusi onotner touch af service with me 
comp4imentscJLoweComputefS The 
top name m home and hobbyist comrnu- 
nicotion and computer systems 

Special offer worth at 
least £40 

FREE suite of 7 programs, 

2 games, 3 utility programs and 

2 music demonstrators 



Extensive and rapidly expanding software 
library holding all the best gomes PLUS 
education, mystery, adventure, 
business and utility programs 



LOWE 

COAAPUTEP6 

Low? Computers. Lowe Electronics Lid 
Ctwtorfielti Good. BefitteyBndge 
MOFtoCk. Dertjysriire Of 4 bit 
retepnone(0629j 
O95/4057 




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Conwltr SfWH «769) TQ$j;.>3/4 niDW wtSTWH fwm^ UwipiMl (Mn; HWI 5WHXW • » D C<j««Ming 

C9W) wms wwfs dmju fvrtwm rtB*» «ej wro ro«s* sowsobqu* aw* flue 0w> 

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•Jt«(i>iijftijn)ioo uwconeu«(Mi}MSWW wcwitonnCwnwuBMiT*- 

MJFW15 Camp** It rtiw Ltd (QU4) Jtm fcCxOnrtn Bigg L*S 10*54' 4777/379 «MU3 **H 

GB.E Tw*nj CartkJn (0H<5» i»M0 IMOOR 1i*r CotoM* (WW MtW2 CMin 
r *u» WM. CvfMn CMM3 <H»I7 9MB IHN 5*44*1 Co Lid («M) 4i«B 
5*MSO MfflmWn iJwrewW Qmi (07W) TtHI 7 HOtRCM DHJIfB «.I*T frit 
*» lflKnK*4l L«3 CM333 3itn* tamm E*t*ra fOtVHMV (M3J) ?40lfil 

r«« i«wm««i new) 77067 



1 * 



FROM ADDICTIVE GAMES 



v«&** 



HAMLET 

Challenge your genie , 
to a compleji and 
demanding gome of 
s troiegy that will 
fascinate you tim* 
after lime Play a 
friend or rhink quickly 
again} I the computer t 
response Features 

lOurvd prompting and 

elegant colour beard. 
MACHINE COOt 

£8.00 



/ 



BACKGAMMON 

This traditional game 
of skull and cn-ant* has 
now been 

implemented on your 

Colour Genie. Pil your 
mind: ogam's I the 

tompuler bui don 1 b*> 

surprised <t you lose 
time after lime 

£8,00 




Putkmon Challenge 

The high**) score in Puck man (send 
photograph of screen) receive! a prize of £50 
worth of soliwore and £50 tosh Toiol value 
El OO. Closing dale 30lh January I9ft4. 



Dealer enquiries welcome. 
Creative software writers needed 
Highest royalties paid 



ORDER HOW 

All prices fully inclusive 

Please send me copies of the 
products licked 

Homier '. Backgammon □ 
Puckman □ Micronopoly Q 
French Tutor G German Tutor □ 
I enclose cheque/P.O. for £ 




FUCK MAM 

ii* eot or beeotenf 
Run Puckman around 
the moi« gobbling up 
the dots before the 
ghosts grab you 
Features four ghosts, 
power pdls multipl 
screen's, tap score and 
dan ling colour 
graphic* together with 
sound that Takes your 
micro ta its limits 
MACHINE CODE 

£8,00 -"i " 



Just like the famous 
board game of similar 
name but with o 
difference* The 
ecmpuier is bonder 
ond PLAYER One to 
five human plgy*?r> 

compete m o superb 
rendition of this 
thrilling favourite, with 
all the standard 
features and a 
strategy thai will 
torment you' 



£8-00 




TO OUR EXPANDING RANGE 
OF EDUCATIONAL SOFTWARE 



trench 



To: J D TRONICS 
42 Crediton Hill 
London NW6 1HR 

Name 



FRENCH TUTOR 

Learn French the easy 
woyl The program 
teaches both verb 
structure and noun*. 
1000 word 
(extendable) 
vocabulary with 
accents and gender*. 
Features machine cade 
input routine, sound 
and stimulating colour 
Not a gimmick t _s 

£9.30 



GERMAN TUTOR 
COMING SOON 

£9.50 




fj *ftn«n 
the 



Address 



TRONICS 



The Ultimate in Colour Genie Software 

J D Tronic*, 42 Crediton Hill. London NW6 -HR 



IS VOUB COMPUTER. OECEMBtfl 1983 



For 2X81 
SPECTRUM 
BBC 
TRS80 
APPLE 
NASCOM 
VIC PET 6A 
(Please stale) 



NEW! 

EXCLUSIVE' 



Every computer needs 

CHATTERBOX II 

Listen creep, I am the leader 



TMf US to 



PITCH 
CONTROL 




v«o 






TM 



CHAl ERBOXI can say anything! 
Genuine phoneme synthesis - not just recorded 
speech - hence unlimited vocabulary. 
Programmable pitch for more natural intonation 
(exclusive to Wm Stuart Systems)- solid tone 
cabinet for quality sound - integral beep music 
amplifier. PLUS expansion socket for BIG EARS 
voice recognition system Full instructions 
technical notes and software supplied with this 
outstanding educational unit. 
DEALER ENQUIRIES WELCOME 

As seen on BBC TV "Campuler Programme 

#BIG EARS*_ V% j*. 

SPEECH 
INPUT 
FOR ANY 
COMPUTER 

Hugely successful Speech' flegnitron SySlem. 

complete with microphone, software and full p /I Q 

instructions ONLY 3L*t9 

BUILT TESTED & GUARANTEED 

PLEASE STATE COMPUTER UK 101. 

SPECTRUM ATOM. N ASCOM2. Vic 20. Micron, 

ZXSQ81 PET TRSeO MZ6QK, APPLE H SBC MICRO 




ZX81 /SPECTRUM 

MUSIC SYNTHESISER (Stereo* 4 

16 LINE CONTROL PORT 



NEW! 



VIBRATO 
CONTROL 



Full 



Play 3-part music, sound ejects, drums etc 
control oi attack, decay and frequency. 
input Output lines provide control and monitor 
lactlity (or Home Security. Robot Control. Model 
Railway etc etc Works with or without 16K RAM, 



Full instructions software included 

Add keyboard to make a live performance 

polyphonic synthestser' 

Noie up to 3 units can be used simultaneously 
giving 9 music channels & 48 1 lines 



AMAZING VALUE 

AT ONLY 

E19.S0(KIT) 

C25.SOiBUU.ri 



THE COMPOSER 

SyniftmMr Mvnc 

Program™ 

Enter 1 pHy 3 Mri rvrmgny 

Include* fjemonitre Inns 

i Soeclrum ZX8 1 1 f»eomm*r.<*»a E~ I 



6 



TALKING HANGMAN 

to» frvenerbo*' 

Th*dHicg«m* 

dfrm* IS victim* 
arinftdryHKV < t'™ ' 

eaHfflpifllrnenl (Spectrum E6 



IX ARP DRUMSEQ = 1 1 CHROMACODE77777? 



apnonyrebDrifS General** 
■Utomilic *aquenc«t *nd 
CH*jd tram *»yt)o*' J Sam* 
*eird e*l«cti iSpetltumi £4 



C*n you 0»lui» rrw bome try 

endung m* Mo«t 
con*«mion beta* i«"ie >un» 
Suf W*i ChtiMfbaa ¥<0Ca 

Outpul nSpKlrvnl Co 



COLOUR MODULATOR 

BQB ■> PAL UMF OUI(n« (Or Z*| 



Kit £16 

emit £22 



Please add VAT at 1 5% to prices 

Bar day Access orders accepted by telephone 



All enquiries 
S A E please 



WILLIAM 
STUART 

SYSTEMS Ltd 



OuarifyOowii Moum 
Uflowengn 
Nr Saloouy 
Wiltshire. 5P4 ODZ 
T*l 096064.235 




Take your team from the 4th 
Division to the European Cup! 
Features 4 divisions, promotion, 
relegation, transfers, injuries, 
suspensions, weekly results and 
league tables, reserve team, crowd 
trouble, and all the fun, drama and 
frustation of managing a league dub. 

48k Spectrum, 48k Otic, 
Dragon 32, BBC B £6.95 



From retailers nationwide - or by return 
iii In class post, Jun note your name, 
ddiJrL'it, computer end program* 
• i-quired on (he beck ol your cheque or 
postal Order, 



Makrjj Virgin's 

Vomp look amateur" 
- Dragon's Teeth 




DRAGON 32 
£6.95 



You're tfve Un turvi¥Or ■ end it's • 
tonf way home. Can you survive the 
minefield!, the helicopter gunsliips & 
the errrwd petrol*? Who d*r»*. wind 



P6IWOFT 

7 Hawthorn Crescent 
Burton -on-Trent 



A 



NEW RELEASES! 

Professional Programs and Games 

SMC Goldseal Software 

FICTURAMA SPECTRUM 1&48K - UM 

Draw and save coloured pictures <4 compk 4 only by your 

imagmafion. with the aid ot 63 Built m User Defined Graphics (flying 
Saucers, ships, can, ir<wr» etc.}. Demo picture included on c aieu lt e 
QpUonal Joystick control pbs facility to create, save, bad and use 
blocks ot 2 1 of your own UDG s Full documentation 

MACHINE CODE TOOL KIT SPECTRUM 16748K , tt.OO 

Build your personal library ot M'C coda routines — amend, test or 
print and local* in REM or RAM TOP. HEX or DECFMA: 

instructions plus domo M'C Code routine 

GAMES DESIGN PACT SPECTRUM 16/43* £9.00 

Design and develop your own Arcade Games with Picturama and 
Machine Code Tod Kit Complete with special lnrtrucbore and 
•ample M/C Code routines A must tor alt Spectrum eniruiftafts 

PERSONALISED SHARE PORTFOLIO £6.00 

SPECTRUM 4 

Powerful Menu Driver. Program including Capita) Gain* calculation. 
FT Index comparison and Graphic presentation Cassettes also 
available ior BBC "B" and ZX-BI (I6K) 

STOCK CONTROL SPECTHIJM48K £17.50 

Essentially pre :ram designed by Chartered Acoo, 

Record and Search plus special feature* including automatic re order 
schedule and automatic Budget Control Complete with 
comp r eh ensive instruction* 

MANPOWER PLANNER BBC"r £52.50 

i design essential lo Architects, Consulting Engineer*, etc in 
planning future Work Load SAE lor further tafbrrnanon 

Mail Orders Only 

a w . PVt i. fc MA SMITH 

2 Solway Rise, Dronfield Woodhouse, 
Sheffield S18 5ZR. 



YOUfl COMPUTER DECEMBER 1963 It 



COMPUTER STANDS 






JM 




I * -^^1 



POWER BASE 

ZX81 ref.PBZXBt £13.00 
plus 95p P + P 
Spectrum ref. PBSl £13.50 
PBS2 £19.00 



Raised stand for ZXS1 and Spectrum. 
Filted LOAD/SAVE switch, and power 
ON/OFF for screen clearing. Saves 
wear and tear on connect tans. Front lip 
holds computer in place. No soldering, 
comes complete with all necessary 
plugs ami cables. 

NEW Spectrum Sound, whh built in 
variable sound amplifier . (PBS2). 

plus95pP+P 



STACK PA CHS 




MICROCARE 5TACKPACKS h, 

lu't-ii designed 1 1 '>i isftd 

independently or in conjunction 
whh ' Interface 1". The 
STACKPACK has ,, neol bousing 
for the Sinclair Tr.insformer and 
h.is room enough for cable stowage. 
All STACKPACKS bave 
SAVE LOAD and ON OFF 
twit) hat to simplify Iheae tasks 
end save needless wear and tear im 
plugs and sockets. 

STACKPACK ONE ■ The cumplete 
BACKPACK for the Spectrum - 
SAVE LOAD, ON OFF. FULLY 
VARIABLE SOUND 
AMPLIFICATION - THREE BUILT 
IN n AMP SOCKETS WITH 
MAINS SWITCH AND NEON 
INDICATOR. PLUS MAINS 
CABLE AND PLUG. Ref BPl £2600 

' L1.50 P + P 

STACKPACK TWO - All the 
feature* of BACKPACK ONE but 

Withoi.ii ' -, i..ih\f rtnd pl"R 

The top is suitable fur carrying 

your own TJURAPLUC type 4 way 
I3amp cunneclur. Ref BP2 Cifl.50 + 
E1.00 

STACKPACK THREE - Includes 3 
x 13AMP sockets, mains switch, 
neon indicator, cable and plug but 
does not include sound amp. Ref. 
BP3 t20.no • CI. SO P*P 
STACKPACK FOUR - No extras, 
jusl SAVE LOAD and t »\ OFF 
switches Ref. BP* E1Z.04 * C1.00 



STACKPACK FIVE - ZX81 version 
including sock els. mains switch, 
neon cable and plug. Ref. HPS 
£19.35 * £1.50 I 1 - l» 

STACKPACK SIX - ZXBT version 
excluding sockets etc. Ref. BP6 

£12.05 * 8<)» P + P 



MICROSTATiON 




The MICROCARE 

microstation is s compact 

wiirkst.il ion designed lo 
.ici iiiniiioii.iif ,i /.Xm im Spectrum, 
Cassette Recorder, Printer, 
Microdrive wilh room behind for 
the BACKPACK of your choice. It 
is ideal for use in restricted spaces 
and allows tin- computer and Ms 
peripherals lo be moved around 
with a minimum of effort. 
Rid. MS £6 00 * E1.50 



WOBBLE STOPPERS 



At last, h fool proof method of avoiding 
ZX81 whiteouts caused by KanvPack wobble 
Simply turn the plastic thumbscrew until 
ihe Ram-Pack is held firmly against the 
ZX81. No soldering no stick-on piweas, 
fuel i ninmon sens** Flat or tilted models 




!.arg> 

il.il nrlllted 
for /.XH1 and Ram- 
Pack and Printer ref. LW£5.75 flat 
LTW£6.75 tilted 

plus 60p P+P 
Small 

lilted for 

ZX81 and 

Ram -Pack 

ref. STW 




£6.25 plus sop P+ 1 




Small 
flal ZX81 
and 

Ram -Park 
ref SW 



£5.25 plus 60p P+P 



WEARS AVER 

This compact unit (4" * 3" k \\"\ 
has a SAVE LOAD switch and a 9 
volt ON OFF switch for screen 



clearing. Simply plug in your EAR 

and MJC plugs and your power 

pluR 

SPECTRUM Ref WSS E900 ♦ 95p 

ZXfll Ref ZXS E8.fl0+95p 



30 VOUfi COMPUTER DECEMBER 1983 




Wilh our ME46 memory expansion 
add-ons your Spectrum can increase 
its capacity bv up in three times. 
9 no soldering 

# easy lo fit 

# -ample to plug in 

# fully guaranteed 

t> mi luss of memory ihrouKh wobble 
or while out. 

NB, Before ordering your Spectrum 
ndd-un please check which Spectrum 
you have in your possession, At irn- 
back of theZX Spectrum the metallic 
contact strips can be clearly viewed. 



In the series A the space separating 
the strips is the same width as the 
strips In the series B the strips are 

"IV H >■ .IS VVid.' as The Spin i' IwtWMII 

SPECTRUM 

MKl6-4fl SeriesA£34.50plus6«pP-P 

Series H L^O.r.il plustiOp V V 
M t 1 6-Hfl Series B £46.00 plus 60p P - P 

zxai 

MEl-64 £44.29 plus Bflp P - P 

FITTING/TESTING SERVICE- While 
you wait, personal < idlers Monday - 
KHda> 9 10 S. 00. £3.00. By return 'of 
post £7.00 





F ANTASTIC 

ZX81 & SPECTRUM 

SSI SPEECH SYNTHESISER 

SIZE T/ 2 " x BV 4 " k 1" . 

• M.iiurli; .)m.i*jny> -.;•■ ■ !i '■! Ivi ' I vm! h 

your V.X Spectrum. 

• Specially designed for use with your 
Spectrum. |u«t plugs in. no 
dismantling or soldering. • 

• No power pack, leads, batteries 
or other extras. 



TAPE LOAD 

ANXIETY? 

\'\i load lakea the frustration 
out uf loading yourZXm h 

' (nun |iroKriimn ■ 

• helps lo ensure programme 
load every lime 

• monitors tape oulpui level 

• (ttvem pa*iiiv* »»ve 
indication 

• detects blank tape without 
disconnecting cassette 
wires 

• ready to use - no wiring 

TL nisi plui sop p * p 



Amp) i- volume from huiii in kiudnpiMk* i 
Manual Volume Conlrol un panel. Can \w 
plugged in lo existing hi-fi system. 

Uses no memory ed dtew 

Free Dtclloaar) of Sounds. 



HI SPEECH SYNTHESIS!! 

mi h pint »» p - r 



1^1 LJLjDI C [Trail*- enquiries w.-h mi 



- 



FABULOUS 
SINCLAIR ADD-ON 
OFFER FOR ZX81 
OWNERS 



These are the real thing, ZXfll memory 

made for the USA and 
sp.'< ifically screened to stop radio 
interference, 

# no soldering 

# easy to fit 

# simply plug in 

# no loss of memory through wobble 
or white out 



Fully Guarant eed for 

12 months 

MEl 16 USA 

1 15.99 plustiOpP- P 



Th.me Villas. Ijuidon N.7 Tel: 01-600 7919 



]'!>' 




Please send. 



I enclose cheque/postal order for. 
Name 



I 
I 
I 

Occupation 



n*t 



. made out to MirroCare. or I would like to pay by Access or Barclay Card 



r ■ — I 



Address. 



Date. 



I 

I 
I 
I 

J 



YOUR COMPUTER WGEMBER 1963 21 



bili/Erlind 



SILVER LINO LTD. 156 Newton Road. Ekirtorv-on-Twit 
Sliffi OE15 OTR Tel Burton 10283)63987 

ALL PRICES INCLUDE POST & PACKING & VAT 



% 



NEW 



MASTER DIET PLANNER 48K Sptcirum £11,95 

The oil i male m diet programs, ihe MASTER DIET 
PLANNER contains details of calories, protein, vitamins 
and other nutrients tor 681 foodsl Ttie MASTER DIET 
PLANNER will help you to plan a well-balanced diet, 
including options to restrict fats, cholesterol and salt, 
or to increase fibre intake - at the same time offering 
maximum choice of foods. Instruction and Recipe 
Book included. 

ADVENTURE GAMES 

HAUNTED HOUSE BBC/B £6.00 

An excellent introduction to adventure games. Can you 
survive the perils of the castie and the graveyard, to 
collect the 6 treasures AND rescue the princess? 



JOURNEY TO THE STARS 



BBC/B 



£6.50 



PASSPORT TO DEATH 



BBC/B 



£6.50 



You have been sent on a dangerous mission to find 10 
treasures - but how are you going to get back? Beware of 
the Antiflavian McgaTiger and venomous lizard woman! 

I ~ 

str 

1 9? 



From the planet Zandra, you have been sent to Earth, a 
strange place with stranger inhabitants! Finding treasures 
is not enough - without extra fuel, your starship.will not 
gel you home. 

We require good programs to increase our catalogue and pay high royalty rates for published material. 



EDUCATIONAL PROGRAMS 



ENJOY MATHS 48 K Spectrum £8.00 

A suite of 4 highly motivating programs for the 8-14 
age range; tables, simple equations, polygons and areas. 
The programs combine explanation with tests and make 
good use of colour and sound. 

TOWN TEST BBC/B £6.50 

Identify the major towns and cities of England. Scotland 
and Wales, displayed on a high -re solution map. Suitable 
for all age groups and for school or home use (try it as 
a quiz for all the family I) 



BIOLOGY 



BBC/B 



£1250 



A maior collection of programs, written by a GCE exam- 
iner, designed to aid the understanding of Biology to 
CSE. O' and A' Level standards. These programs com 
prising text, animated diagrams and questions ■ are 
available in one package and are suitable for individual 
study at school or m the home. Teachers will also find 
material suitable for class demonstration, 



STRATEGY GAMES 



PEN TILES 
REVERSI (Othello! 



BBC/B 
BBC/B 



£6.95 
£6.95 




Educational Software LCL 



MICRO 
MATHS 




TIT'" 



BBC Micro 

ZX Spectrum 

unexpanded VIC 

ZX81 

Apple 

PET 



All software for the above computers. 

MICRO MATHS 24 ppogram Ff/yisjon or jelfluition &ourc« to 0-L«v*i 
P4 50 leicepl ZKBl n*.S0l 

jA PICTURE PuZZlt I8&C y Elecrrwi only I Full Kftan colour graphic* 
t«M*TeKtiwi'Pir*nt* iwwt mdwJad Agn 38 win n*o SAduH wnhouT 
^jfifr C5 50 

ANIMATED ARITHMETIC Tweho uwfj moving cotovf ptctuns Inm 

>*>n* i Ag* is re 50 l*K P SCI 

MASTER MATHS (Appla and PET ontyl 50 program O Lave* couth en 
\mdhtfi *K), *nwing graphics 

ftm ptQQt&rmnQ fOntitnt Q htgh Ttm programs mre robust 

TIMES EDUCATIONAL SUPPLEMENT 
ImmucJwte tfupalch of SBC. Soatttum and ZXB1 Micro Matht and Apple 
Mtttar Maths. Phgna at aand wiUrt or request* lor (roe HWtogu* USD 

pfoamialiB 

If* I i<tatt*ut*n * t4 (outrMl 



26 Avondale Ave. 
Staines, Middx. 
Tel:0784 58771 



OCNfROUITftApt 
DISCOUNTS 



ORIC AND SINCLAIR 
COMPUTERS 




t>» 1 nw^iiK 48* i US it 141| f 15; 
One 1 161 ■ ItJl Hit One 

c«>Wp.^>»*f U4 .1 !j)M 144) Six.Uk 

Seactivm 49k tltl min i i«j 

SpwiFvin l«l I 101 II 105- I It' 37* 
mwiorv upgrMr »rt for tfiK Sjj, ■ 
iotw J onryt rat ifJS, [Jo ZX pr«iM 
*#rt 5 Ira* nA pap* Ml I* p»ni*i 
*»»r» ir»>f» isnrtwTOaitij 
«ne<t?i zk*i mj in> «4j so*** 

0*1* {i«cl Z* 81 compntw • 1«(< ram 
(Met • fl*m- i§e» 1 49 if ii Ifii ZX ST 
l«iamtiar_kjifil '(?§•( 30 



COMMODORE COMPUTERS 

Ci*iwnt)fJo*» 64 (HI il 2011 1J21 
w* 26 vMih li« cmott wwai tec 
cmw ana pama* mi l£14*J M7» 
Conwts> Id arhMr ithmi atdMWv mono 
c am ww latadM to bi uaeo **•> n« 
V<7Q#t4CiywfiOdi**M by* f 9 71 

rf1l f 1 1 K-l l > 4? l| J.i 19 Cnmrnntmr 

iiuriK racordar (O r(4»< f&0 1^41 
0<k i»<w (733 f(J1»> i2J* l4?b 

Pr*,lm I ?J< IS I5»»i-«W 

|JM OJCKSW 



ACORN COMPUTERS 

Etncrran (503 l 209. (729 B*C MmM 
fl I 404 if 368 ' n«( Mndu double 

inhm lor f*iMi 

(1)1 «'1»' -vPwrJ.i 

>«nT|« ■)! Cunwv <*nc ikim ' 
rg I0M tintfto T230 It 1. 
DoufefeZ . *0OK i*2*i irWOiiMO 

PRINTERS 




' 140 
<494 
• 134 



Krv>- I»*80 I 336 ,1309, « J4»1 (pv*. 
RX»0» T I J4& f ]I6 [J*rj Sf»l*^CTl 

CP« tin ifzrn <srj Et»*c». fioki 

Ml '4«J tp»<^ MXIDfi J 
|4« 1 49»> S^otfu GPI00A 

Kzi9i tarvi Oil M-cjur* n 

■ 741 lfZZ7i < JriB 0»- Wciotnt H 

(«T TrvUNr«Zl«cKnbM«ddMV wM 

anri iUKtnc Ivfimrrnw f4JB l(4l%i 

I44& th» tumlm tPZ? co rrtfMncl marm 

pmar and «a«:tnc rvpntfi** (173 

•IIS4I (IM Jt*i StM tKopry 

rum* wtnat prmHtr (423 >r404l E434 

MCC40 tolc*.r fmn|*i I I 

Si* STKH rh#mu4 pr»iii» I IM 'I 1 S9 

f I'M Mto can tu«A) <«Miiai i 

ihp abcni* rrorn Sh#p tarnnuMW» IM 

UK101 ANO SUPER BO ARO 

W» »ll*l IvPIMil! lh»W 

rnacnjnei W>irr Irf imr wnuimg H> ol 



SWANLEV ELECTRONICS 

Th« Computsr EMporl Specialists 

Depi YC. 32 Goldsel Rd ., Swanley, Kemi BRS BEZ. England 

T«l SWANLEV (03221 64851 

. • .■ -'i - i i ■. . j 



Mr* i #■ > 



22 VOW COMPUTER. DtCIMBfR 1983 







Inside- 
New Interface 2 
and ROM cartridges! 
New Software 1 . 






TAKING NEW SOFTWARE 
IN NEW DIRECTIONS 

You II see that ihts issue of Sinclair 
Special devotes considerable space 
to software Why, when we ve so much 
to say about hardware and peripherals 7 
Simply because at Sinclair we believe 
in supporting first -class hardware with 
first-class software 

This month sees the start of a new 
commitment to education in our 
catalogue, both for adults and children 

In the field o' micro theory, we've 
programs like Beyond BASIC end 
Make-a-Chip. which take you from the 
creation of simple ZX * assembler 
subsets to simulated circuit design 
projects 

There's Musicmaster. to leach you 
music terminology, note values and 
composition 

And if you're keen to beat your 
Spectrum at chess (which can be 
hard!, you ll certainly want lo try Chess 
Tutor i the first program in a complete 
chess masterclass 

Coming soon... 

In the pipeline are many new releases, 
some of which break completely new 
ground LOGO and micro PflQLOG 
for instance They're fifth generation 
languages which win take you end 
your Spectrum closer than ever before 
to the creation and application of 
artificial intelligence 

A formal agreement between Sinclair 
sod Macmillan Education has been 
announced, the first results of which 
will be published this autumn These 
consist of five programs m a complete 
early reading course plus the first four 
Of a series of programs based on 
Macmiilan s top selling Science Horizons 
Scheme All programs ore designed 
for use in schools or the home 

And with Blackboard software, 
we're publishing six more home 
education programs for pn mary sc hoo I 
Children Covering alphabet, spelling 
and punctuation, each of these 
programs is a true gem, unlike any 
other education software, and fascina- 
ting to run Even for adults 1 

i believe that these new titles 
represent a major advance in educa- 
tional software for the home 

New ROM software toot 

You may well have heard news of ZX 
Interface 2 * and ROM cartndge pro- 
grams. You'll find full details of the 
Interface and its software on the facing 
page (and there's an order form on the 
back page too'j These offer an instant 
games playing facility at unbeatable 
es.and expand the possibilities 
of using your Spectrum in yet another 
direction 



&U^ fr\vV(AW« 



Alison Maguire 

Applications Software Manager 



SOFTWARE UPDATE 

The latest cassette software for ZX ' Computers 

Chess Tutor 1 

For 4SK RAM Spectrum. £9.95. 
Chess Tutor is a new way of learning all about 
c hess - u sing y our ZX Spectrum, * 

It starts from the beginning by teaching 
you about the chess pieces and the way they 
move -including castling, en passant, 
promotion, check, checkmate, stalemate and 
perpetual check 

Then it teaches you the basiciaqtios -pms, 
forks, double attacks and skewers 

There are over 120 exercises and over 200 
questions for you to answer- with demonstra- 
tions and hints from your ZX Spectrum when 
you want them 

You can choose which parts of the course 
you want -and even experienced players may 
be surprised at what they can learn from 
Chess Tutor 




W*@M 





V 






Musicmaster 

For48K RAM Spectrum £9.95. 
Musicmaster turns your ZX Spectrum into a 
musical instrument which will not only play 
tunes, but will also demonstrate key signatures, 
durations of notes, and scales 

You can write your own tunes -m any key- 
piay them over and over again, save them on 
tape, modify them 

You can either write your music on a Stave, 
or place a simple overlay on your Spectrum for 
a 17 note keyboard 



Make-a-Chip 

for 48K RAM Spectrum. £9,95. 

Make a Chip teaches you the basic elements 
of circuit design, shows you how they fit 
together, and then lets you design and test 
your own circuits 

When you have designed a circuit, you can 
give it inputs and outputs and your ZX 
S pect rum will check it for you Then it win fun 
it. or tell you what's wrong so that you can 
modify it 

Make -a -Chip is a fascinating way or finding 
out how computer logic works 



Print Utilities 

For 16K and 48K RAM Spectrum. 

£9.95. 

Increase the printing and display facilities of 
your ZX Spectrum with 1 he Print Utilities 
program 

Print Utilities enables you to enhance your 
programs by generating characters of eight 
different sizes which you can place anywhere 
on your screen. 



Beyond BASIC 

For 48K RAM Spectrum, £9.95. 
Takes the agony out of assembler Takes the 
my stery out of machine code 

Beyond BASIC gives you a deeper insight 
into the workings of your ZX Spectrum II 
explains what happens inside your micro when 
you rune program, end it teaches you simple 
Z80 machine code programming 

A major feature of Beyond BAStC is lhat it 
enables you to wnte your own Z80 assembler 
programs - then you can actually see on your 
screen how they affect the ZX Spectrum 
memory and registers 



ZX INTERFACE 2 

The New ROM Cartridge/Joystick Interface 



Loads programs instantly! 
Takes two joysticks! 
Just plug-in and play! 

The ZX Interface 2 is the latest new 
peripheral for the ZX Spectrum ' system 
It enables you to use new ZX " ROM 
cartridge software: plug -in programs 
that load instantly. It allows you to use 
two standard joysticks, without the need 
for separate, special interfaces 

To use new ZX ROM cartridge pro- 
grams, just connect Interface 2 to the 
rear of your Spectrum or Interface 1 and 
plug in the cartridge of your choice. 
The program is then loaded, ready to run! 

You can use any joystick that has a 
9-way D plug. Use one or two of them for 
extra fun with ZX ROM cartridge or Sinclair 
cassette programs -or with dozens of 
other Spectrum -compatible programs! 




...AND BRAND NEW ROM CARTRIDGE SOFTWARE! 



There's already plenty of choice of ZX ROM cartridge 
programs for your Spectrum. Some are old favourites, in 
an exciting new form. Others are new 

And now, thanks to ROM cartridge technology, you 
can run them alt on a 16K RAM Spectrum, even if they 
were originally written only for 48K machines! 

Every ROM cartridge program loads fast and fault- 
lessly. No wires, no waiting, no worries about loading 
errors! AH of them are afford ably priced too. at £14.95. 





Newf PSSST 

Robbie the Robot sits 
in his garden Help htm 
letch com post lo 
cultivate his prize 
ThyrgodianMegga 
Chrysanthodil Help 
him make the right choice of 
pesticide, to ward off devilish 
insects Stop the insects breeding 
to overwhelming numbers before 
Robbies plant has bloomed 
PSSST is horticulture with a 
horrendous twist' 

One and two player option, 
withe host of features including 
sound effects 

New! Tranz Am 

Set in a future time 
ruled by care and 
trophies, m a land 
where petrol re- 
places gold, end 
' status is possession 
of the 8 Greal Cups of Ultimate 

Driving your Super Blown Red 
Racer, usa your skill to Outwit 
and crash the Deadly Black 
Turbos Use your instruments to 
locate and collect the trophies - 
before you overheal or run out of 
fuel 

A program with outstanding 
multi-directional movement, 
graphic features, and a playing 
area equivalent to more than 
600 times actual screen area 





Chess 

This sophisticated 
program does 
everything you d 
expect at board 
game level, and 
much more besides. 
The high-resoiulion chess- 
board and pieces are arranged 
m a row and column system, so 
it's easy to key in your moves. 

At any stage of the game you 
can request the computer to 
suggest a move, reverse roles 
or change the level of skill 
Full-cOlour high -resolution 

graphics 

Horace and the Spiders 
Guide Horace on 
the hazardous 
journey to ihe 
cobwebbed house 
full of poisonous 
spiders 
Safely m the house, you must 

move along cobwebs, choose a 

Spot a nd j u mp on it < The Spiders 

will be in a frenzy -scuttling to 

repair their precious web 
And when a spider is spinning 

a new section, you re safe to 

attack and destroy it 1 
Kill all the spiders, and a new 

web appears with even more 

spiders to catch 
Full -colour high -resolution 

graphics 



Backgammon 

Everything you 
need to play the 
famous and decep- 
r**J tively simple board 

M game Board 
A a*, stones, rolling dice 
and doubling dice are shown m 
full colour and high resolution 
Choose from four levels of skill 
to suit experts and beginners 
alike -full rules are included 

Planetoids 

Dodge and swerve 
using your thrust 
button, turn on a 
planetoid fire' 
But beware -ihe 
alien ship moves 
fast to destroy you with cluster 
bombs And when it comes to the 
crunch, use your hypers pace 
button 1 

Full COlOur high -resolution 
graphics with sound 





Space Raiders 

Your skill is all 
that's stopping 
successive waves 
of aliens from 
destroying Earth 
Use your gun base 
to attack Shelter behind 
bu iidmgs move out and blast 
the passing alien soaceship' 
Full-colour high resolution 
graphics with sound 

Hungry Horace 

i Horace is forever 
jflfffet being chased 
f^Jj • around the park by 
' guards 

He steals th 
• lunch, eats path- 
way flowers and creates chaos m 
the park by ringing the alarm 1 

You'll have to be quick to keep 
Horace out of trouble' 

Full -colour high -resolution 
graphics with sound 




New! Cookie 

You're Charlie the 

*.. e Chef, who keeps 
mggM his ingredients 
^T ' locked in the larder 
• ^Cz^ T But it Ihe ingre- 
dients escape, they 
bnng the inedible Nasties with 
them! 

You must da*e the escaping 
ingredients with flour bombs. 
and knock them into the mixing 
bowl Stop them getting into the 
dustbin, at all costs' And beware 
of Nasties that get mto the 
mixing bowl' 

Cookie is fast -moving panic m 
the pantry, with a cast of real 
characters A program to make 
you smile - and sweat' 




New! JetPac 

As Chief Test Pilol 
of the Acme Inter- 
stellar Transport 
Company, your task 
■s to deliver and 
assemble spaceship 
kits On your way round the 
galaxy, you re free to collect 
precious stones and gold 

The catch - * Rocket fuel is 
precious and scarce And the 
aliens doni take kindly to the 
theft of their valuables You h 
need your wits and your lasers' 
With a host ol features, inclu- 
ding multi -directional movement, 
explosions, sound effects and 
one and two player option 



ZX MICRODRIVE 



} 




NOW ON RELEASE 



The ZX Microdrive System -as you'd 
expect from Sinclair - is unique to 
the world of computing. It's a com- 
pact, expandable add-on system 
which provides high-speed access 
to massive data storage. With just 
one Microdrive alone (and Interface 1), 
you' If have at least 85K bytes of 
storage, the ability to LOAD and 
SAVE in mere seconds, the begin- 
nings of a local area network of up to 
64 Spectrums. and a built-in RS232 
interface! The cost? Less than £50 
for each Microdrive. 

How to get ZX Microdrive 

Spectrum owners who bought direct 
from us, by mail order, have been 



sent full details. Order forms are 
being mailed in strict rotation, so if 
you haven't yet received your order 
form please bear with us. We're 
making good progress in meeting 
the huge demand. 

If you didn't buy your Spectrum 
by mail order, don't worry. Send us 
the form from the bottom of this 
page. We'll add your name to the 
mailing list, and send you details by 
return 

Each Microdrive costs £49.95. 
Interface 1 costs £49.95, but just 
£29,95 if purchased with a ZX 
Microdrive. Extra ZX Microdrive 
cartridges: £4.95, 



How to order 

Simply fill in the relevant sections 
on the order form below. Note that 
there is no postage or packing to 
pay on some purchases. Orders may 
be sent FREEPOST (no stamp 
needed). Credit card holders may 
order by phone, calling 01 -200 0200, 
24 hours a day. 14-day money-back 
option, of course. Please allow 28 
days for delivery 

"ZK ZX Speclrum, ZX Interface and 
ZX Microdrive are all registered trade 
marks ol Sinclair Hssiarch Ltd 




Sinclair Research Ltd, Stanhope Road, Camberiey, 
Surrey, GUIS 3PS Telephone: (0276) M5311 



To: Sinclair Research Ltd. FREEPOST. Cemberiey. Surrey. GUI 5 3BR 



ORDER FORM 



Sfchon A Hardware- 


Qty Item 




Code 


Item Price Total 
£ S 


ZX interlace 2 




8501 


1095 


ZXSp*Ctnjro-*8K 




3000 


129 95 


ZX Spectrum - 16K 




3002 


99 95 


Postage and packing orders 


uftder 


£90 0028 


2 95 


orders 


ow 


£90 0029 


4 95 




DGE PROGRAMS 


TOTAL C 


Sawlton B: Software ROMCARTW 




Q12ffl Planetoids 




530? 


1495 


QWfl Spcic* 1 Raiders 




5300 


1496 


Gi&R Hungry Horace 




5303 


•4 95 


G24/R Horace and the Spiders 


5305 


•4 95 


G28-'R PSSST 




5307 


14.95 


G30/R Cookie 




5309 


1495 


G29/R TranzAm 




5300 


1495 


G27/R Jet Pet 




5306 


14 95 


G22JR Backflammen 




5304 


14 9*. 


fiiOR Chaat 




5301 


14 95 





CASSETTE PROGRAMS for ZX Spectrum 

E9VS CuessTutoM 



4306 



9 95 



E7/S Musicmaster 



E8JS Beyond BASIC 



4308 



90S 



430? 



995 



E6JS Make-e-Chip 



4305 



995 



LS7S Print Utilities 



9 9S 
TOTAL £ 



"I enclose a cheque/postal order made 
payable to Sinclair Research Ltd tor £ 



* Please charge to my Accass/Qarciaycard/Trustcard account no 

'DeletaJ'coiripJsts . i i i 

•fWpueewe I 1 I I 1 I . I I I I I I I L_l I 

Signal u re | 

I Mr/Mrs/Mi,*, | | | | | t ] I I I 1 I I I I 1 1 1 

!*""»» I 1 I I I I I I 1 I I I I 1 

I 1 II 1 Mil 111 I II II M I III 



1 I I I 1 



I I I 1 I I 



t CCOTI j 



ZX Microdrive information request 

Please add my name to the Microdnve Mailing List, and send me a colour brochure with full specifications 
of ZX Microdnve/I nterface 1 f tick here). You can use the above form to send us your name and address 




..■ ■„ 



r: 



9 [§ 



• 



...withSCOPE Computer Graphics Language and write arcade- 
style game programs to compete with the professionals. 

m 

' HIS sens,itiorv3l.$CG^E utility plant language mnemonics, 

_ and your Spectrum will unlock therefore no knowledge of machine code is 

■*r imagination, 1/s amazingly simply required, - *.'•"* ** * 

I fast and enables you 10 write fast r , , ." I( ' ' f . 

..„i„., r r,rtr^t- Ea«h command worn will write into the pcpyram 
moving qames in MACHINE CODE" ' - - , r *^ a 

v ftiHrTiorynhe releyant machine code. 

* SCOPE. realises your potential and . . ... o*^^ ■_. . 1, 

. ^ II * t ' r It Hi getrerated from BASIC and is fully compatible 

releases it. You II amaze lamily and .. " " „,_ * 

, with BASIC. ■. . * 

frieYKis iffirl surprise the profession a ls^ r g * * . 

r/jf-K v.j/f/ rt toukitx't lie dope The language t*>m die user erfd is very easy 



I TiT«TV3 rgi CTT Jil TTrUh lTTm*t»Ii fa 



SCOPE' cart be use*d as a/i * 
, • assembler with , 
SCOPE words as 



* T t -drs*jiL 1 i/-Ai hrriii r U} cnmpr ehend and is comprehensive, 

TECHNICAL DETAILS * ■ ,, - 

r-^^r^ . ,, piovidmg many features rq* available 

$COPE ,s a fully structured muWlHk 7for „ ^^ sqppE ha „ to4w 

compiled language, specially ^ ^ bH ^; d . ? , 

* for writing arcade type games „ 

enabling you to program As **** «* MACHtm CQOS 

machine code without any Stmpinr $h,tt, BASfC ^ 






€7/95 



48K SPECTRUM 



, r "<*^ 



Computer "Graphic Lor vguoge * 




W 




Now, a home computer with virtually 
no limit to its possibilities. The astonishing 
new Sharp MZ700. A machine with a 
dazzling array of talents. 

First it's a 'clean'* machine . So you are 
not limited to any one computer language. 
>bu have the flexibility to run and write 
programs in BASIC, FORTRAN, MACHINE 
CODE, PASCAL, ASSEMBLER and many 
others. And the MZ700's 512 predefined 
characters mean you can build up detailed 
pictures on the screen, without spending 
time specifying and designing special 
characters for games and special effects. 

Second, it has a memory of 64K. So as 
your technique improves and develops, 
you are able to move forward to more and 
more advanced programming. 

All of which makes this the perfect 
home computer for parents, as well as 
children. 

The MZ700 gives you access to a wide 




choree of new software, from only £3-95 
per cassette. An additional plotter/printer, 
costing £129-95, can produce high resolu- 
tion graphics in 4 colours. A data cassette 
recorder is an extra at £39 95. Both add- 
ons fit snugly into this easy to carry compact 
system with no trailing wires. And you 
get ten exciting games, free on purchase, 
including Super Puckman, Circus Star, 
Snake v. Snake, and Man-Hunt. 

The brilliant new MZ700, 
The no-limit computer. £249-95. From 
Sharp. Where great ideas come to life. 




\ 



\ 



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to i om i i ir i rr Mk 

I ■« f t i i i 




■■ 



wmmm 




CPU: 



RAM 



ZSOA 



64K byte ORAM 
4Kbyte VRAM 




l 



ROM Monitor 4K byte ROM 1 

Character generator 4K byte ROM 1 



8 
2 



1/0 bus: Expansion 1/0 bus 1 

Additional printer 1/0 bus 1 

Cassette RE AD/ WRITE terminals 2 

Joystick terminals 2 

RGB MONITOR/VIDEO MONITOR/RF OUTPUTS ' 

\ Look for this logo on 

Jf* software denoting 

Sharp Compatible Software. 



To 



Sharp Electronics (UK| Ltd. 
Home Computer Division, 
Sharp House. Thorp Road. Newton Heath, 
Manchester M10 9BE Tet 061 205 2333 



Pfease send me details of the Sharp MZ700, 
Name 




Ai^rlrpss 









The world of 




where great ideas come to life. 





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•Due'! -vro** /apt and 

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Kf/yrjoi**" 1 '-UIIPlJl I nra** Ifta) 

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SPECTRUM 

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jii Kvmoiaeri y :*■«• ... jdl • u» *« 
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it»a *.un«nc* mm 

■nd cumearalM* 

l on rrworaaw and mtmAmI 
■'■■» ate DOC ModM B 



DRAGON 



DRAGDNFLV 

IIIEHlSlllilill 





Hi hm >mi iim< tvgn imnvw ><n 

jWMKwi i bM co»m, tooptf 
kice doMfn'rodaartduyv] Stjpe«t> 

ojc> pi! dt«PMy :■' t*W» *«J ' *aOcv' s 
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We f^BJKrtngTiquciiity tottwar* lot el 
the popular home computers We pay 
top royalties 

S«nd in your programs today for fast 
•valuation and prompt reply 



I 



Please rush me 

{Tick boxes as required) 




LJ BBC NIGHTFUTE CB.BS 
DiO SPAGfc WARS tB.M 
OoUfcSt AUwtNTUftt C»*» 
LJ NrOKTFUTE CI,B1 

LJ he a in row a.i c cr.aa 

□ SPELT HAL PANIC CAM 
Q MAftCH ASfc C4.aa 

□ sPECVAPERS t*.« 

NAME 
AODRfcbi. 



^J COUNTRIES Of tfia WORLD BBC C6.9S 
LJqMNdPRI* £a.M 
LJ BACKGAMMON C».M 
J COUNTRIES Of THE WORLD CS,»9 
D DRAGONFLY (fot Oregon 32) ».»» 
LJaO BEST PROGRAMS CS.»» 
U*JO BEST MACHINE CODE ROUTINE* 



*OSTCOOE 
"u»i tD HfAsuN tQ^SgL'r*N?S WA ii Mary j Stifrl Wmn^Qnl Oi9*4 D*1C &EL 

■ 1 ENCLOSE MV REMITTANCE OF 

* MY CREDIT CARD NUMBER IS 

* llto-aTr jiiAiiuliMAi 



SIGNED 

Uak* orw*w«i.PO* MA** >0 H**ten CantuUrtta 



r«i«aiio«« i&tfti) rjuor 



Not all home computers 

stay at home. 



The HIM ! Micro is the ideal family com- 
puter-simple to operate, yet fast* powerful, 
with inunnmis potential. 

Hut its nice to know, 
when you buy one for your 
home, thai the business, 
educational and scientific 
worlds agree with vour 
choice. 

Here are a few stories 
to illustrate flow the HIM] 
Micro pets out and about. 
And one to remind you how 
helpful it can be \% hen it >ta\ > 
at home. 

A practical lesson in 
business ad min. 

The contribution of the HIM] 
Micro in the classroom has long 
been recognised at IVi ins Community 
School in Hampshire. 

The School has 12 HIM! Micros used 
extensively across the syllabus: in fact 
some pupils are using them to >tud\ lor 
their CCK Levels in computing. 

One of the programs available 
to Perin> t teachers 






such as David Heck, pictured below wit! 
his class, is "Newsagent" 

This program contains all the 
neeessan in format ion for the class 
to run a newsagents shop: allow* 
inj; them to organise daily 
deliveries, n lake up bills and 
keep an eve on stock 
control and ordering. 
Its a nice example 
^^ of how the BBC 
J^3^ Micro can he used 
*^ notonlv toacquaint 

a class with the language 
ol computers, bul also 
with some* of the real- 
ities of the community 
in which they live. 
Correctin g 
J odrcll Hank, 
The HIM] Micro is a 
familiar worker around 
jodrcll Hank. 
You 11 find it in the reception area ex- 
plaining the workings of a radio telescope 
to visitors, for example. 

Hut it's also been helping in a 
more testing task: to improve the per- 
foimance of the I )ef ford telescope. 
In this application it has 
been used to make calculations 
neeessan to determine the 
precise parabolic shape of 
the dish. 

Theodolites are used 
to do the measuring- then 
the HBC Micro works out the 
necessary corrections. 




The end of lh<* scrawl, 
[fan? of you have noticed how much 
easier it is to read and understand labels 
on drugs and medicines these davs, then 
vou ean most prohablv thank the I MIC 
Micro. John Richardson. a Preston pharm- 
acist, was first to realise how a micro with 
a suitable printer could produce labels 
that were accurate and legible and 
which could include, automatical!). 
such information as drug reaction 
warnings. 

At the same time il 
could record drug usage for 
better stock control. 

He (hose the BB( '. 
Micro for its versatilih and 
potential for expansion. 

John Richardson be- 
lieves that this system will 
be recognised as standard 
in the profession and be used in hospitals, 
health centres and pharmacies through- 
out the IK. 

Meanwhile back at home. 
[)r.& Mrs. Garwood bought a BBC 
Micro as a birthday present For their 12 
year old daughter. 




programs. Mrs. Garwood is particularly 

Kroud of one program she has compiled to 
elp teach her daughter French 
\oeabular\. 

They all agree that although the M iero 
is fast and powerful enough to be at home 
inJodrellBank^ 

it is also the 
ideal com- 
puter at the 
Garwood 
home: 

simple to set 
up (virtually 
am IV set 
and cassette 
player is all 
vou need) 
and simple 
to use* 



>Bonjour; 
jesuisle 

BBC Micro. 



1 




However, it quite quicklv became 



common property 

All three can now wTite their own 



All this for only £3W. 

. — , y 

The BBC Micro comes with a com- 
prehensive, step-bv-step I mi Cuide 
which introduces vou to your micro and 
shows vou how to construct useful pro- 
grams of vou row n. 

Wi will also receive a &ee**Welcome" 

cassette which contains IS different 

programs lor vou to experiment 
with- ranging from music and 
graphics to games like Kingdom 
and Bat "n" Ball. 

The BBC Micro is available 
from \\ 1 1 Smith Computer 
Shops. Boots. John Lewis and 
local Acorn stockists. 

Mternativeh if vou would 
like In order one with vour 
credit card or if you want 
the address of your nearest 
supplier just phone 
I OI-260 020QorO<m-79300. 



The BBC Microcomputer System. 

I toigzted, pnwimrd ami di^tributi-il Uy \« *>m * lompatatt 1 imili'd- 




"ADVENTURES INTO IMAGINATION" 




CREDIT CARD HOTLINE 
06286 63531 (24 HOURS) 




RICHARDJ5HEPHERD 
SOFTWARE** 



Dtvlb of Ibe Deep 

Discover the secrets of Atlanta as you 

wander amongst its ancient columns 

Explore the 1 00 deadly sectors of its 

treacherous seabed! Beware of giant 

eefci E6.50 




$^ 



RICHARD SHEPHERD 
SOFTWARE 






Super Spy 

Follow the trail of Df Death through 

complex puzzles, coded messages and 

3-D ma/es until you find his lair' But 

beware even with your death 

defying gadgets you may not five to tefl 

the tale' E6.50 



TR A «YLVA 

_ f*J 



'Ai 



njtvn 



A spine chitting adventure e 
navigate your way through S00 3 P rot 



^jr\ w f tne swooping vampire cmtv re.u i 
tef'rfvmg top confront and kill Count knvpio 
rrdclin^B^Wt^ldof this rrartsylvarnan Terror 

i yr*i survrve ine Top of 7 he Tow op ' E6.50 

RICHARD SHEPHERD 
SOFTWARE 



Selected titles available from 

W. H. SMITH, BOOTS, MENZ1ES 

AND ALL LEADING COMPUTER STORES 



RICHARD SHEPHERD 
SOFTWARE 

ELM HOUSE. iriS ELMSHOT7 LANE CrPetNHAM, SLCKIGH. &€RK*HiRE 



Att (toqt jnn Mt loto njOfn: r to fv t inthm I 



Selected titles available from 

W. H. SMITH, BOOTS, MEMZIES 
AND ALL LEADING COMPUTER STORES 




they lead you to undreamt of treasu 
doom?Explof- ysterie srock.u 

puzzle wjfhin the Pagodaf/ 1 
serpen qraphii .md tr*i adventure to „ 
you for weeks! 

Adventurous graphics for every I 
Save routine £6,50 

RICHARD SHEPHERD 
SOFTWARE 




CREDIT CARD HOTLINE 
06286 63531 (24 HOURS) 



RICHARD-SHEPHERD 
SOFTWARE 

ELM HOUSE 33-25 ELMSHOTT LAME. CJPPENHAM, UOUGH BERKSHIRE 




Sni flic Line 

RICHARD SHEPHERD 



SOFTWARE 



Snip off Um lino 

Command a sarlinq snip, juqq'e vouf 
supplies, t rew and firrjKivver F earlessfy 

battle your way up the ad mir alt y ladder 
bribe Sea Lnrds .is nnessary until yi>u 
make f irsi Sea Lord i £6.50 




#1 




VERE 
BSCENT 

RICHARD SHEPHERD 
SOFTWARE 



Everest Ascent 

Conquer the world's t miriest peak in 
defiant cul all the obstai l« Mian and 
nature tan thn iw at y< iu Survive 
avalatx ties, aosstxntti unless rrevav\r*\ 
(opewirfi wayward Stiff pas but 
don t run out i it supplies' £6. SO 



,.l„-f,.1„-l,.l^.TI r . j.,. ...... *- j.,,, ... r „ 



rrv*n* ■ it*-rrrtiVsi»U»U«tM *«f «wl|f* «mltfi 



a*k 




tO-l^l IUI 11*1.4.1 lULB^ZEkZ^A J Ji 





INVADERS 





My mission was to fly the 

fighter low over the surface 

of the planet avoiding the 

radar as best I could, and 

then take it deep inti 

the core of the 

planet to the 

main thermo 

nude a r leactor. fire my time 

delay missiles and get out fast. 

Everyone said it was a suicide mission, hut it 

was our last chance - Can you run the 

GAUNTLET and survive? 

6 95 




Approved by Oric Products International. 

INVADERS THEU 

A superb example of thd truly Van have be 

classic arcade game. Includes a duel lo thi 

til (tit features ol the original space by tht 

and much, much more, race of mull 

A.Q5 dirkesTdtpi 



LIGHT CYCLE 

The MASTER CONTROL 
PROGRAM has ordered you to 
fact your light cycle on the 
infamous gnd This is an 
incrtdiblv lajl. adrenalin 
pumping game thai n wry 
addictive. There is an option 
lu rac* against either another 
player nr the computer - but 
wt warn you its wry wry good' 



6-95 



THE ULTRA 

You hive been challenged lo 
a duel lo the death in outer 
vpacc by the ULTRA, an evil 
race of mutants from the 
darkest depths of the 9aU.1v 
We dirt you to accept then 
chalienge! 

This a 9 PURE arcade same 
and a must for all y du alien 
upper*' 1 E different screens 
make things really tricky. 

6-95 
HOPPER 

Help FERGUS end (its friends 
across the highway avoiding 
the traffic, and then river the 
treacherous rivet on the backs 



of turtles and tog* to the safety 
of the lilly pond 
Features indude 6 lain of 
traffic, diving turtles, croco 
dilet & Haas. 

6-95 
CENTIPEDE 

You are caught in a vicious 
jungle of giant i meets Ctnti- 
pedes are attacking you from 
ail sides. Killer f lets are dropp 
inn from the sky, and to lop 
things of! there's a wnemoui 
spider lurking in the back- 
ground. You only have your 
trusty laser cannon as defense. 

6-95 



!■■■■■■■■■■ 




AVAILABLE NOW DIRECT FROM P.S.S. 

FOR INSTANT CREDIT CARD SALES TO (0»3>6475S6. 

StNO CMEOUtt OS PO TO PS 5 452 STONEY STANTON RD COVENTRY C\*4 SDG 

TRADE ENQUIRIES CONTACT JOHN FLETCHER COVENTRY (02Q3J 81344 



Which home computer gives 
you so much software for so Little? 



hntertainment fur .ill: 

Video Che** 134 95 

Murwhinan 129.95 
huec (Optional Spmh| 12995 

Orhdlo £2 

funnels lit Doom 124 95 

Advenruie Cartridge 12495 

AJJntuikil Advcntinc (jtmio 

all at £14.95 
Adventure Lmd 

iMc 
Voodoo ^ imIc 
The Count 
Srr.itv^ 1>J\n«,^ 
Myscc v FunHouw 
Pyramid ol Doom 
Ghost lawn j 
Savant Ul.utd 
Uolden Vtn 

Alpinci 

(OptHirul Speeih) 124 95 

TUmadcn. li 

CirV 11995 

CrusHoIru rr.nl 119 v5 

Hustle 114 95 

Tombstone Or) U495 

< onnen bout 114 95 

Video Game* 1 11- 

Hunt Tk -Wmipti* li 

hve-A6*deSoc<« 114.95 

Anu:tng 1 14.95 

Art**.! 11495 

W.wii 01.95 

Blackjack &.Pblua Hi 

01.95 

Yah is 

OlcfeoBuiGood**! ill 95 

Oldie* But Goods 11195 

Malta Simulation 111 95 

Ld neat tonal; 

tarb, RwJiiv 129,95 



Musk Maker 12995 

Allig.in>r Mm 12495 

Ahen Addition 12495 

Demolition I Vision 124 95 

Dragon Mix 124 95 

Mvnts Muston i24vi 

Mei et >r M u I t\\-\ k .it u w\ 1 2 4 9 5 

Touch lvTMit« Tutor £24 

Addition Subtrjition I 119 95 

Addition Subtraction 2 119 95 

Multipk.iru.n li 1 

Dnnswn 119 

Numcrari 11995 

eratton? lr 

b.irl> U.uim^J-uii 11495 

BcuHvunuGranvnai 114 95 

N umber MagiL 114 95 

hiuiKtmn lb 
I l ,k h Yoti i m.-I I fc Vt ended 

BA £11.95 

Banners BASIL tutor £9 95 



Graphm* J\k lage £2 
Sliuttural bnjamtruu: 

Librirs 129 95 

Frupamming Aid* 2 1 19 95 

Programming Aids 3 lr 

h Editor tls"95 

Programming Aids I 111 95 

Programming Languages: 



PAS* Al Editor 


199 95 


i Al Lnkej 


179 95 


txietided BA&K 


£69 95 


I 1 LogU 


169 95 


Edttot/Asfcenejki 


169 95 


MlIllMi'T 


1 69 95 


PAM AL i imij 


I V 



Home Organisation! 




Persona! Reuird Keeping i 


Personal Repon 




Generator 


139J95 


Hi<nn 


• 


Home Financial 




I fecistunt 


12495 


Personal hii. tnctal Atd> 


£11.95 


Other Appbv-H Hi mn 




Inventor) 




Invcsune 




tingLtti 




11 Wmei 




i\Xi>rd Proce*s<na) 


185 95 


MuktpUn 




Sheet Program) 


t85 9 j 


SUtl*tkft 


154.95 


iatot 


£49.95 


- Routine Library 




hieiiikai bngtnecnng 




Ltbr.i:% 


129 95 



A.S.K, Applied System* 
Knowledge*: 

Hide and Seek T.h j 

Number Gulpet th,i 

Lollcilfc' Educational: 

H-U9 4A Starter Pari 1 19 95 

1 1-99/ 4A Starrer 1.^2 19 9S 
ll-99/4AG J nrWnter 

Pack 1 £9.95 
Tl -99' 4 A Game Writer 

fccU 19 9A 

( he** Learner Pack 19 95 

Record Keeper Pack >.95 

hail Hi ru Sott\v,ti c : 
MalhsleMCI I 19 91 

MartbTea >95 

Phy»u H t9 9S 

na*m k 

Biology Testa i - • ■ 

Human Btulon i ^9.95 

bond A-.mh.uus: 

149 95 

Little Genius Ltd: 
Scrabhk 1. 



And is available at all these dealers? 



All branches oft 
AlgOli Comet. Dixom, 
Greens ol Oebcnbuni», 
John Lewis, Rutnbclowv 
Wi^t^lU Zapt^i 
Miii « branches of. 
AiJj.Bir. putenfei All. 

COOP Gun v». bine bait. Kcti», 
Photoniaiket. Rynwa, 
Spectrum. Itkr.Mon. 
And at; 

ABC Gompu tcrv St Austcl I 
Akhtet Harlow 
Anj^u Audii> Redtotd 
Anglu Soui-wj bte^tnaBc 
Audio Marketing Lonoon 
Audi' Fiiveriyrumi 

BagruH StaHbrd 



cll> Ru^4>v 
Gontbined Frddinj; - HartielJ 
ConpUter >upermarkt,'t 

Manchcater 

Gorton [V Peterborough 
Dean and Son L.i.>ndon 
Ddtjblevuonio London 
Deniharn Computen. - Poole 
Desk A, J- Njuthampton 
Dodai Aihion 

ivttk*- NcM.'caMle 
Galax\ Video Maidstont. 
Hamlcyv London 
H.inviJ> London 

HeBen t diiaSnoV 
HvnhinGomputen- Mantbester 
Landau Sutton 
Lion Ht*usc London 



MiircjV.ii.n. Ammhani, bucks. 
Mid-Jiiie> Lif i 
Milcquip - Oloutester 
ObM Cocnputen Rugby 
Parco bin. itoiih > Honiton 
RbW London 
Robox Glasgow 
& itnce Studio - Oxford 
Sdrndge* - London 
Star rrekVidiv Wigdn 
To> and Hobby %tg.in 
Universal Warehouse RcjcIl 
Videi' Palate London 

S. jskhi ^lur^ Kinpton 

Webwyn 

: manv orh«,t trading 
Computer > i- 



Turn the page and see 
the unbeatable. 



. 









The unbeatable 

TI Home Computer* 

It's all the computers your 

family will ever need. 



Buyinga home computer is something 
won hive to ger right first rime. It's too 
hire when you've got one to find it 
won't take plug-in software. Or can't 
be programmed without an expensive 
accessory 

The TI Home Computer is a 
real computer system 

The TI I tome Computer has got the 
memory power you might expect 
from more expensive computers.hmlr 
in. At its heart is a pi >wertul TMS 9900 
16-BIT Microprocessor Most other 
home computers have only an 8-BIT 
And you can expand the memory 
from 16K of RAM up to 52K, 

The total memory capacity is 
114K Bytes. 

A wide range of 
software for everyone 

Another feature that makes the TI 
system so powerful, yet so easy to use 
is Solid State Software.™ These plug- 
in cartridges cover everything from 
space games like Parsee* to teaching 
maths, managing home finances and 
composing music. And the range is 
getting wider all the rime. 



It even has what 

professionals look for in 

a home computer 

CPU: TMS WOO 16-BIT, pha 256-bvtc 
Scratchpad RAM. 

Memory: Toral II4K byres; 26K hytts 

\\( i\l iMemat;upto WiK ROM cartri4g« 

external; \bK built^RAMcxparcdaH 

5 2 Kbyte*. 

Kcybo«tdi4d KcyQWHRTY, alphaluck. 

function kov auto rqx-Mr. 

Sound: 5 oCCtvo, 3 Mmtilrarwtiu* tones. 

rn'iM- r<nu\ 

LoLuur tt> ltiTi%Tt»mnJ iinJ haik^nxind. 

bfagh resolution. 

Interfaces: t is^ ru . TV 2 jovstu ks, 

n i.i m [vm^fuT.il port. 



More than one 
programming language 

The standard programming language, 
TI BASIC, is built into your TI 
Home Computer so you can begin 
programming right away But there's 
an expanded range ot optional 
languages like Extended BASIC, TI 
Logo, USCDTascal, TI FORTH and 
Assembler 

With these you can fully expand 
your prog ra mmin g skills. 

A wide range of peripherals 

Most computers lose a lot of memory 
when you add periplwrals. The TI 
Home Computer is different. Every 
peripheral comes with its ownbuilHn 
programs to keep the loss of memory 
to .i minimum. 

The convenient Peripheral 
Expansion System houses up to eight 
peripherals. Additional hardware 
cards simply plug in, You can even add 
.i complete Floppy Disk Memory 
System. 

The peripherals include memory 
expansion, RS232 Interface, P-Code 
card and more. There's also a 
sophisticated matrix printer and Solid 
State Speech" 1 synthesizer - whii 
you can use with your own TI BASIC 
programs, 

A lot more for no more 

The TI Home I 'omputer gives you so 
much more without costing more. 
At today s price its exceptional 
value. Take your family round 
to try one. It you never try 
it vou*ll never know what 
you're missing. 



* 



M rnfeJrnwk ot <rii» Irntr 



Texas 
Instruments 

Creating useful products 
and services for sou. 




W hatev it von %v:irtt vonr hninc com ptlter 
>il 1 1:- m \K] *ftOXI ran do H 

ATA R r GOOX I prorfu cl spec! f im lion*.. 

Cokxir capabilities \*i colours and If* 
intensities 256 shades 

Memory uih k \m expandable to tf4K 
uiih memory expansion module 2+K HOM 
operating system including ATARI mask 
program n i ti i jj; l:n 

nd *indcpendent sound synthesiser* 
I ii li v, uh a "1 ; . Oftl*. (' range 

Display II graphic modes B text modes 
Vfi to *'J0 v 192 resolution Maximum \v\\ 
display y V line* hv +0 minimis 



rH)li\I . Home Computer. 



Special STAR] integrated circuits 
GTiA for graphics display I'' >KI Y W *mmd 
indcontrotlerports. ANTIC for » reen com ml 
and? 

i w $$02(, mkio proc e mo t. 04< micro- 
second cycle 1.8 Mba 

hxtcnded graphic sfum turns I [ighreso 
lutkwi graph ic*Mu hi coloured character set 
Software screen switching Multiple 
redefined character sets Plaver missile (sprite) 
graph u s Fine screen scrolhng. Changeable 
rolourrvgisiers Smooth chnraiiermoveflMSM 
Simple colour animation faeiKriw 

ming features Built in \T\Kl 



mle colour a 
Program tin 



BASK programming language phis Bother 
languages HI 1 1* kev will provide additional 
information :nul menu screens Syntax 
checking nn entry 

Input Output external processor bya 
for expansion with memory and peripherals 
I controller ports Serial 1 'b connector. 
Monitor output 

S oftware Over looo items of software 
available including mU teaching programs 
with uriKpie voice over K<3iica1ion t lome 
management l^rogrammutgaids Atari user 
written p ro g r ams ^ \PX) And Atari s famous 
entertainment soft wi re 



rience grows 

Atari 600XL. 




KTrakBall Controller. 



5. Super Joy si irks. 




7. DiskDrixr 



H, SO Column Dot Matrix Printer 



9. Letter Quality Printer. 






Time peripherals will be available soon 

I VTA HI 1010 f^igr.tfn Reorder for km 
cost storage and retries al capability Data 
transmission n'OO baud Storage capability 
|(M)h bytes on. i ivOiiiiiiiiirijsM-ilc Track 
configuration *(rack, *J ihaiiiieK (digital 
and audio ':. \uto record playback/pause 
control 

3 AT ARI 64-K Memor y Module gives the- 
ffOOXl . a massive $4K H \ \i 

!i. ATARI Touch Tablet enables you to 
paint picture* and draw diagrams. w«h tht* 
touch of a vt\hiv 

v \ r \KI Trak Ball" Controller enabtea 



cursor movement m any direction, add*, to 
(he plea m in- of Atari games 

5 VI Mil Super Joy viu^ Gives you a 
greater competitive rage over your games 

•> vrAH.I IQtfO Colour Printer plotter 
Four colour graph u print capability M) 
cotumn in characters per second 5, 10 and 
20 i ha racier* per inch 

7 VI Mil 1050 DLialDinsiivDi^kDriu. 
tiding i,'7U randomly 
accessible bytes provides both expa n si o n snd 
flrxihililvforvourtiOOX] svttemwMiDOStn 



The new \iari \l . home* computer system. 



ft. AJAHI ipB5 BO Column PotM 
Printer prints 6. lOorlfi 5 character* permi-h 
+0 characters per second Ideal for program 
lisfmgs.finaiiciat jeports.etc 

*> \l \HHU27 LeuerQuahiy Printer lot 
uonl prot t^smg letter* in professional ■ 

If vend like to know more 
about the .VI AM ffOOXL write to 
Alan international (I'K) Inc. 
PC Box 407.Blatkhorse Road. 
London SES SJH and we'll 
sritd vou all (be details 

ATARI 



professional tvpi 

111' to I 



For the 

Commodore 






<k 






?<£+< 




Xid. 




the Suites. 




SUPER COPTOR 

f tv supt*i Captor m .1 Mission 10 Save* 
your Country from destruction. B. 
o**'Air Musiles". "Radar Bak* 
"Laser b< reerV. Control your "Supef 
Copior" with %plit second timing — are* 
mmj uploi! — 9 nerve popping. j*rion 
packet! ievete of pi. »■. 
ONIY l I 



DO YOU WAN 



Plt'JMM 





J 







TAX MAN 

Vou art 1 on [he run. gathering "14 much 
money a- possible while being pursued 
ikmen with tax bills in their hand i- 
Ready to pounce (in vou a rid make you 
bankrupt. Can you outvnar l them or will 
ihi-y jmubush vou by biding m the 
h,M Itground 

6cuciiing "Arcade Action'" level* of pUy. 
A completely new version of this ner\e 
popping" game. 



Nh • 



OF THE ACTION- £55,000 

flv 



.POSTCO 

i» Mm m Li 65 each 




I enckwe Cheque. 



-londjftj Lid,. 3a Cuctdinuion Aw 

•<rPjrfi.Surri", k. M 7DB. England I 

I 

3M Rjihljmfurn ftojd, Dublin 1-1, trcUfwt 
T«i:Q14C32 1 

J*. 

10106.1 



SOp f*»: A p* > 



«.\t 



64 



^■HH^H 



^^^■M 






100 FREE PROGRAMS 

FROM SILICA SHOP — WITH EVERY PURCHASE OF AN 



ATARI 



■ 



REDUCED PRICES! 

Wa *1 Si lid Shnp are pleated IC announce ignu 
ftftltttit f«ducf»(jni in the pncei Ol IN* Atari 4O0 800 
p*r«on*l eompulSfS We Oeliftve !h#! the Alan #1 it* 
rv*w pnc# will btcome (he UK* moit popular per 
tonal computer and have therefore let up trv* Siik* 
Alan Ui*u Club Thu club already ha* a i>orir ¥ of 
Ovar SOQ pf&flram» an 4 wi|h your purchtM o* i 400 
or BOO computer we will give you the dm 100 f'tt of 
charge Thar* arc alto o**r 350 proletnoneiry writ- 
ten gamei and utility program* igmi are 'itted 
below Complete rh* reply coupon and we'll tend 
you lull detail* A\l*r<tMt>vmtv C«v# ut « frrtg- 011 01 30! 
1111 or 01-309 1111 



ATARI 400 

with 16K 



£99 



ATARI 400 

with 48K 



£158 



ATARI 800 

with 48K 



£249 



400/800 SOFTWARE & PERIPHERALS 

Don't boy/ 1 TV gimi 1 Buy an Atari 400 pertonal computer and a game cartridge and that* #11 you'll need Later on you can buy in* BUK 
Programming cartridge [05! arid iry your hand at pfogr»mming uting the eftty to leirn BASIC language; Or if you are interfiled m bunneat 
application*, vOu can buy (he Alan 800 * Onk Dnve • Printer together with a telechon of buimm package* 

Silica Shop have put together a full catalogue and one* lul giving d*i*>i* of #11 the peripheral* ai well a* the ektentiv* range ol tattw«re that * now 
avaiiabia for the Alan 400 800 The Ann it now on* of the best supported p*r*on*i computer* Send MOW lor Side* Shop t catalogue and price lift 
at well a* detail* on our uteri dub 

THE WXLOWHeG IS JUST A SMALL SELECTVQN FROM THE RANGE Of ITEMS A 

t- *>■«*• «™m AXWOaaT 

w* Cmvuv ir** r^>w 

m ** — *t~ 1 — ttimn 

r dan Obi^m* ii|ki> Cfufn 

. *■*•« »•**»« *■■* Cvw [■ «n»m 



lCai« Upltlvta 



»*•■ h,K 



CvpW Aw* do* 



SOt W liUl Ul 



,T"' 



■ m iiTiiht 

IM Tin 



***»•> Ci"m 






HUM T* T_ , .- 

**•!-« * *w low tiw> 4 Cvm 

Main Tnniifc>tf#Ul«i 

r r<« m g>*i i 

CM 

Dew, 
0*U4 l» Mli %****, 






l»l 



B« AM*. 

BuDn 



ll-v'WI 
l3 * » il»* UKrfri 






gagar"* ' 



I* T^l 



IBLKAltSa 

SlBuT 

bhrwi! 



IvqtCl* 

ti. nu iF C*C11 



ruajMui 

*M)J i-WtIr> 

r* n'n •-•*•■ 

1J« l^r, Hill 



NpIMhwI 



. li^br 4ttM" L««t 



riti 



ilrM 






Lirt 



FOR FREE BROCHURES -TEL: 01-301 1111 



i bJi ■ •■■•■"<■ r» w «ar -n ■ *■ ■ a — r he* w >Uj4 f leie M i 
iivxw fcptj ajuBM tjai aiMPi a^i ■■■>— va **-» ■■ -ev pv ^ *av ■# 

4 ie^'HHBM^fM ■^s^- ■«£«. Hil e# •-*— ee k. ■ -*■ —w ■ w* M 

-■ t-*^ *Ji m, w t ai ^ I n Me* * 1 Br- ' — -» *^eh|ive •■* 

I* 3»aJ ■ pit* JL ~"^" J " ' >*■ «n wrw*r ■ ai i i ' t f ■■>- -w 
w «— t^. «-e» ^^ r i i«- H #ah- -« «em 4» —■* vw piip * 

■ ■^^> lfieleaa^*Jt*» al ^A * »A M ■■» " jfc, Ji" tap 

+ i*mm**^mmii —,--*- **,—* — .■ fc» -^ ■ i i — 

rtpea i m i»|ii i — ■ ! BFel'-p-' -e-— *•* -e—^ e-« >w bf -» 

!-^l* »>3lHtWi Wiee^e#">7i' ' l i l| n £ Z—?M I ■ ■ ■ ■ 

StUC* SHOe l IMIU 

Oepl. YCllU. 1-4 The Mewl. rlillwt«T fl*«J. S**cwp. 

Kant 0*1* 1DX l.WphOrt" 01 301 Till sr 61 30» 1111. 



JiJy^li 



FREE LITERATURE 

" ■ I 1 * 11 B •> 0un*wj an Ann. «CO«V wmiwtv and 

M> vo i«tof «owa* <■ yw tmx^ufH and wm report* 

row pnee Mt ee w ew . ■* gt Ww »«■«*•• Hertnera 



.*«* I 



YCUll 



yOOH COMPUTED DECEMBER 1983 43 




NEWS 

from SPECTRUM 




The libuloul TEXAS T| » *A no* o«>y 
(WW Irom SPECTRUM An incredible 
Mm a Computet iargam Si* our ed.tb* 

further drtjili 



ZX SPECTRUM 
MODEM 



r*0* jrouf SPECTRUM CM Open up the 
world <ammunif4.lt 1 wUh other cOmputerl 
Have full aecrii to the PRfSfEL d*U b*ie 
»>i rour leiephonr See Our id Id dellili 



ZX SPECTRUM 

Joystick interface 



Now from SPECTRUM the MtQTEK Joyl 
tick fnterfete for the » SPECTRUM - 
CNLY £H « 



Budget Price 
JOYSTICKS 



Now from SPECTRUM QUICKSHOT Joy* 
lithi tfnly £ 10 W t« avr Jd <oi drli<l» 



ATARI 



NewfxMXl model arriving loon 1 alio ATARI 
VCt Cim« Machine (H out ad for 



PRESTEL 



See PRSSTEl Page £00161 lor up to date 
information Irom SPECTRUM 



NEW SPECTRUM 
MEMBERS 



Cheflj our addre«t pa£f ■ there ate many 
new SPECTRUM dealer i throughout the UK 
vo there i a good chance theie II be a SPEC- 
TRUM tent re near you 



AFTER SALES 
CARE 



SPECTRUM wnrtce centre* will en lute rh*i 
ihould your machine go down we will (el 
it running igain ai quickly at posuble We 
ilu offer extended warrant*** at reason- 
able price* 1M 1 atk you' SPECTRUM 
NOME COMPUTER CENTRE for lull detuU 



COMPUTER 
DEALERS 



lor prospective Computer deal* Iff) II you 
would like to know more ibou r bet, dfning i 
SPECTRUM APPOINTED DEALER on an 
riiluiive uri bain pleat* write io M1KE 
STERN Spectrum IUKJ Ltd lurrowtield 
Welwytl Garden City. H*rti or telephone 

toron> 347«i 






COMMODORE 



VIC-20 




PACKAGE OFFER! 

a complete Home Computer system includ- 
ing the VIC-20 Computer, a Cassette Unit 
introduction to BASIC part 1 -a simple 
explanation of computer programs - Blitz. 
Type- A- Tune. Race 4 Hoppit A fantastic 
deal! 1 did great value -for- money But 
HURRY! offer only while stocks last 



SPECTRUM 

PRICE 



139 



-64- 



/ 




SPECTRUM PRICE 




COMMODORE 
GAMES 

No* i •■ rhvvr '< 

, i n 

Cowwdam *A RADAR, NAT 
RACf iE* yvQiF ClOWJI 
VK » CORF IMGON J 
<-M|« *VtMCf« iuiumi 
md many moor ALL A' ONI* 

19 99 



COMMODORE 
ACCESSORIES 

• rt Dflt MaTru PnfltfT 

llRIVf (112*00 

f I**.** 
CQM-1TO1 Colour Monitor 
£1)0 00 




TEXAS TI-99/4A 

Eneptional vjlue I'om SPECTRUM and tepretentm^ 
probably t h e l<n*ll home micro computer value on the 
market today' The TEXAS TI-OT/4A 11 built to in eitremr kj 

ruth iUr>d*'d and it highry rrrommtrded by SPECTRUM tor 

ill utter reliability ^^ ^^^^^ ^^^^^ __ 

£J akJ ^^5 

SPECTRUM 
PRICE 



f retomrnendrd bySPftTA 

99 



ORIC-I 




Sotn*' 
OMIC mi nt 1 m 
Get * t*Q C«h 
Voucher 'rd**™ 
itfr i|intl an One 
Pnnter nlw" vwi 
bur the 0«IC 4K 
COmpu1*p from 

4*f CTRuM at* for 
deTllll 



95 



1*"1<l« RAMCaMur n 

N njU Mi m id ■ bjtkpn—d 

cw> Sr Sn^UfH at »* u*n 
rk 'no4v1>o»fi4*>hxi 
Uw ee fin iwi o t*iwi f uM 
uhja« :4 «iA*t eJ centron 
*M* wwh0I law ■• ■■* ntt 
have wll* wiBuWtp krjx 

Min**'* cufwi" » p»«*> m 

inirf'MP iiio*i »*»» cermet 

rio" I-, 4 -p -3* '*i"4r et pjln 

HALF PRICE OFFER! 

Brm| 1 copy ol thu id to your loci i spe CTrum dealer when 
you purcntie en ORIC 48X and if will entitle you la 
purr haw th* ORIC Soft war* Pack containing ■ MUL- 
TlCAMfS ■ OAlCHlGHT ■ CHESS ■ ZODIAC it Hell 
Prwe 1 



SPECTRUM 
PRICE 

139 



LYNX 96K 



■ More 
power 

■ More 
features 

New riom teiCTRuM tt* itmf Lf MK WC dNenng flt*fe wefktfUtf 
li»» rmb.liuut profiann Tfce "Oil impwrtanl i**lu,'» cl «w **t 

«m»i«( 1 1 1(1 idditterui memory in lull hi(h rr veiulion r otovr H p>« 
nflei J> 4K of RAMI oi'*ct»t mrivBlr in RaiU ■ wifti up 14 J4K mo/t 
nuliUf Id proafimi uiinf mriki^ tode Atk (6 tee lh# iupe» new 
LTNH **K at SPtCTftLiA* itQw 1 



ffltMBJgySt 



SPECTRUM 
PRICE 



299 



LTNX 4MK Model -SffCntUM wttt £111 

iwtWL T »>ewm>ri*«or*rrae>let«iwll<«n*niirp Hw «K mttt*** can 
b» wpfr*e*d !0 M *M iprr ifirnwrt tm ,mt UtJI 



leertitim ti wiu te* tentm ha** ■« <a*me(tici> *t*Mior**' win tit* U ipeniwrn CaanpUler tMn^attuifd In Sndair w*wt* Ltd 



ATARI 800 




Check with your 

local SPECTRUM 

dealer for our 

super LOW price 



An idf «l Mom* Micro tor Gripnkt education*! irwJ p* nonal linirvft He utt it 
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tetv progrim recorder*, due drive* *nd more, to eip*nd your micro tt ind 
when you wtnt to tutt your need* So H you re looking for 1 lop of the line micro 
you mttil in th# ATARI «M with 48 K it SPECTRUM NOW 



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WORCESTER 



TJtLfMTOM irtn HI >*•" St 

HL M23 TM 



«OKimH tW 4 w«rp* I'M 

IHlWIllllUI M«SL TEL H0fri7r»t 



STAFFORDSHIRE YORKSHIRE 



•TAffOHB. CVHMVMtm Hf«1*kSt 

HLttflS 4T»M 

CTOU ■ OM-TMtHT CMtMrHM 

liaHMH.MlftLlHlHj 



SUFFOLK 



llvrCjaHMr 
IHI SI T« ifllW fMIH 

Li Tl f * mil i in 

I Him It HL ft»4 7JUOH JTJ44B 
IWHIHC* t piiu H ( 

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UAOrOHD En<u f 
•muSt TU :\< 3MJM 
HUDDHrtflUD *<*irli ' m mwrH 
Liunn HUvwiSl Hi iMUiTUSI 
HUU.Tl*^H«H>CMrt htatanVt 
LH TllMfKl TEl HUJ »»* 
LflaO»fJMllH> 4L«Mf Iriffjli 
TIL »3J *444H 

t*amiLD ;«•»•* Stumulu its 

TMM St TU i0?47i TSiOM 
MUFTOH DM t |*t * •*■ 

hi trumii 

flCHIHI C**W 71 
TU MMi MHO 



Write vour own machine code adventures 

Without my knowledge ot machine code whatsoever 




THE QUILL u * muMtvr nr* utilify wnttrn in nurkuw i.wir wnurk *llow» mg lt*r 
nP»K( pw ymiW I to product lu (h - iprrd iwIiuh <uJr idirmum ul luprnpr 
(juaLfy to ainv HiiliUc k Du mo mrn i without «ry Lnswlnjgc <J mucKim <edt 



v w»j * m rm i td«tHMi ty-tunr run butt nrirr *rll mtt *■» Iocmhmu, JmniH 
■form and nmrrt routn br^x fm tnem I ou nay men LI] UK** » •■ ^ o«i«o *rw 

pnoUm ct ¥6*# <fWM* H.™j InlJ vour Jm«in you nuv iter wj mpm- 
•o* *irli any wctwn wtfk fJw jrratot of cur . A pa/1 io*ia«J •dVenhm Buy t* 
uwJ ■<■ iMftr Jor Un complclior WVtn you run* Jon* mTHFQLlLl nil! tllow 
you 16 pfOflW* ■ rujnr of vqw wrWrnturr wjiurk will run i»ik-pnul«n1rv (i Irw wwwt 
l/tXUL !*■[, H> that you But JrW copti-i pny Hi JVUt inmit 
ThtQllLL ■ pnwinrd with * (irtjilcd (uiurul r&utuaJ >IikIi nmn mtry *ipctf of 
ill iur Ul wrMift* avntum. 1 1 u inpuuiblr U> dcanLr ill ihr trXurri ot llui 
•**i*J projr»Bi tn turn * muII tpacr ro w luw praouccJ « WIWIHHM 
vkrrk pw tuTttm inlorptflHHI H»J HI lllllljlll of *i IW, 

Tk. .W ,,-«,, » .™Ulr * £2.00. ^flff^E/^lfaif 14.95, 




FOR THE 48K SPECTRUM ATII4.95 



£>*ir Software is now available from many computer shop* 
nationwide, or direct from us by post or telephone. 



SAEfor full details of our range, 
Dealer enquires welcome. 




UISOIT 

3D Hawthorn Hood 

Burr? 

South i »lamnrgsn 

CFMl-E 

»|Q44*S 73*3*9 



TELEPHONE YOUR ORDER 
WITH 



DOWNSWAY 

FULLY PROGRAMMABLE 

JOYSTICK INTERFACE 

For SPECTRUM 




only £22.95! 



Built-in memory eliminates the need tor special software 
or edd't>onai connection* — wKic hevef key* ere designated 
can be entered in the memory m seconds — with immediate 
response at «n added bonus 1 

Programmable for eight directions plus Fire, compatible 
with all Alan-type joystick* — Competition- pro, Quickshqt. 
etc, <^an be used with pny gam«' 

TRADE AND EXPORT ENQUIRIES WELCOME 



TO OOWWSWAV ELECTRONICS (UK) LTO- 

DEPT M. DEPOT ROAD EPSOM. SURREY KT1 7 4flJ 

?*«••• lend ma 

Joystick Interlace* © €22 95 each 
|pr.(« include VAT. 9 b P) 

My Cheque/ P. /Monty Order is andoiad 

Please debit my Sanziaytjid No 

Name 

AddrtU 




DOWNSWAY 



Three for the price of one! 
D0WNSWAY/116K CARTRIDGE FOR VIC 20 



< 



A smartly styled RAM cartridge ma sturdy injection-moulder? 
AB5 plastic case which matches The finish of ihecomputer 

SPECIAL FEATURl* The cartridge • switcheble lor either 
3. 8 or 1 6K use. and despite the small sue of the cartridge 
(less than 20mm protrudes whtn fitted to the VIC 20) the 
■witch cert be operated without removing the certrdge 
The Down sway cartridge plugs directly into the rear expan- 
sion port and at a flick of s switch you can have 6655 
1 1 755. or 1 9967 bytes of RAM immediately available — 
all with just one cartridge? 

Plus lull Compatibility with all appropriate accessories 

TRADE AND EXPORT ENQUIRIES INVITED 



TO DOWNSWAY ELECTRONICS (UK) LTD 

DEPT M DEPOT ROAD, EPSOM, SURREY KT17 4RJ 

Piaeae tend ma: 

1SK Certnrjges for VIC 20 6 £37 SOp each 
(price includes VAT. P ft P) 

My Cheque/ P /Money Order n enclosed 
Please debit my BsrtlsytSnS No 




Addfeii 



48 YOUR COMPWTEfl. DECEMBER 1983 




Would you like to deal with a friendly 

helpful company? 

Would you like to see your game the 
feature of a full colour, full page ad? 

I, * * " mm 

Would you like an outright payment? 

or 
Would you like to be paid in royalties? 

Would you like to retain your copy right 
and licence us to market your game? 



ivffl"lv»iTlffrEf?Ulirf3iBffl*H> 



a software house could offer * 

- 

Would you like to send your programs 

to us? 

Would you ? 



TE OR PHONE TODAY 




IOPTUMRC 

PROJECT* 

Bear Brand Complex, 
Allerton Road, Woolton, 
Merseyside L25 7SR 
Telephone: 

051-428 7990 



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Here are four great boote from Melbourne House 
to put you in total control of your Commodore 64 
and VIC 20, Each is clearly written with step by step 
instructions, and fully illustrated. Now you can 
explore the full potential ot your Commodore micro 
with ©testing programs, brilliant new games ami 
innovative programming techniques. 



AC 20 Expand 

fittt time computer owners of 
expenencsd programmers — |Bt 

iMntmaittMtKWnar 

your micro and git the majwnurn 
potential oul c* your programs 

-VEfflbpoMtrirtsjou 

understand sadly hqwtte 

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VIC litnontiw Computing 



StTenEQf Vn IMntlA (BUMS ■™ 

these 3d easy to enter programs 

open ■ Htale new ■MMM ii 

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If jou were to ask me wh<ti 

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"Good wto* tor money** some 

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ft'* 

INNOVATIVE 
COMPUTING 



EXPOSED 





Commodore 84 Games 
Booh 

Teach your Commodore 64 every 
met in me bee* 30 programs 
ranging from MM shatMMj 
span games such as Qatar fcwd 
andEafltirXemetaiBaltfto 
■dtantues mciudmg Sea HanM 
and Fight SimJator Toucan 
MM therp al yourself by simply 
(blDwng Die easy to nM 
listings 

ForjCommodwre&lijmte 
enthusiast this book u a must' 



Commodore 64 Exposed 

The detartwe book tor the 
Commodore owner A complete 
and comoretansM guide, thai 
dearth explains ewm function of 
ywr Commodore 64, framBASC 
to midline language This book 
goes rar beyond (he data provided 
n me Conmfltoft user's: tu<fe 

P'M^ogPII'JM IpM IpaHp^P"^ Ml* '"Mp^M* ^*"" 

programming, graphics and 
sound, pKa sMpto 

demonstration programs that can 
be entered in minutes 




Melbourne House Publishers 




Cassetterfrom the Boohs 



rj 
n 

0*C 



ms*w 
vim 

■ lb II 






Game Software 



."[ nm wwiiii 

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C +l 



80 



Totat 

e 



Wwito [ircs-ac 

hUboume Mouse ' 
131 Trafalgar Road 
Greerumji Umdon SElO 



Melbourne House 
Church tart 
Tnnghmrttorts»wreHP23 3UJ 

Trade enquires 



JUflMMO I 

fvaraftHH 1 agawt 1 
taw omws cm Of 
Mptwwri tomafhon ou 
?<****» (Oil 168 W 



^■■^l 






Pat the Postman 

Really original All Pal 
has to do is collect 
parcel whilst 
avoiding obstacles - 
like cars, hre*. trains, 
etc. Skill level and 
Hall of Fame. 
«I lest*** EsJS 



One Hundred* 
Eighty 

That famous shout 
tells you what rt' salt 
about! A good 
implementation of a 
difficult game - 
doubles, trebles, 
twenty- five and bull 
all possible 
4tiIeK*»nt»K 



Star Trek 

Defend the star 
systems against the 
Klingon attack Runs 
In real time - so you 
have to make the 
right decisions fast! 
«l Hath* u.R 



Deft end a r 
Eaflhis under attack 
from mutant aliens In 
an accurate 
implementation of a 
top arcade game - 
and one of the most 
diflicull to survive in! 





Drakmait 

find your way round 

Dracula s domain. 

A game to get your 

teeth into* 

4tl IfeCtnm U.tt 




Cruise Attack 

Save the city from 
annihilation in this 
wonderful version of 
An arcade favourite 
Nine skill levels, 
bonus points for 
attack ships. 



Nanas 

Catch the bananas, 
miss the coconuts. 
Easy? Try it and see. 
Simple in concept 
hilariously 
entertaining- If II 
drive you bananas, 
ill tatemm UH 



Timeque&t 

A warp- apace 
accident spreads 
your capsule across 
time. As you land in 
each new era, fresh 
perils face you. A vary 
skillful graphic 
adventure 
411 Sptcbm £1.0 



- 1 

* * 
— 



LandotSagan 
A quest to find the 
long lost Staff of 
Hearth, \% it jn one of 
the castles? Or in the 
Tower? There are 
plenty of problems - 
and plenty of 
opponents- in this 
great graphic 
adventure. 
411 SeKlrw (I » 



V 






Creepy Crawler 

An authentic version 
of one of the most 
add kcttve arcade 
games devised. All 
the usual features 
(Centipede, Spider 
Bug. etc) with full use 
of Spectrum graphics 
and sound. 




Mad Martha II 
Great sequel to the 
best- selling Mad 
Martha, Hilarious 
graphic adventure, 
with hero Henry in 
sunny Spam, beset by 
wacky waiters, mad 
bulls and the wrathful 
Martha. 



SAS Assault 

Vour mission- rescue 
the Russian 
ambassador from 
terrorist kidnappers, 
before the Kremlin 
declares war. Loads 
in two parts - your 
rating in the second 
depends on your skill 
in the first. 
4BR Sacttnm Lb » 




Laserwarp 

Invaders, Aliens, this 
game has the lot -and 
you have to survive to 
destroy the Master! 
Simple controls, far 
from simple task. 
UftSftctnM IBM 



Knockout 

No aliens, lasers, 
invaders or rockets - 
Just simple but 
absorbing fun which 
up to 4 players can 
enjoy. 
4aiIestsveL{ttt 



Qelakzions 

Watch out as the 
Galakiions break 
formation to attack in 
such force that no 
mere human can 
survive! 
W tiWts e j tlJe 



See them at 
Lightning, PCS, 
Tiger, Co-op, 
Menztes.WH Smith 
a other leading 
retailers 

PHONE YOUR MSA 
OR ACCESS 
NUMBER 



Other great new Mikro-Gon programs corning soon - watch out for them! 

Please make cheques/ PO payable to Mikro-GerV and add 40p post & packing per order 

Mikro-Gen, 1 Devonshire Cottages, London Rd, Bracknell RG 12 2 TO Tel; 0344 27317 




DO YOU WANT A WORD PROCESSOR FOR YOUR BBC 
OR A WORD PROCESSOR FOR YOUR BBC ? 

Yes there is a difference between word processors and we can offer the best because it's the 
FIRST PROFESSIONAL DISC BASED WORD PROCESSOR FOR THE BBC COMPUTER. 

The MERLIN SCRIBE uses the disc on your computer the same way that professional systems costing 

many hundreds of pounds do. 

Until now any document you wished to create has been limited to the few pages which could be squeezed 

into your computer memory. This means the computer is really using the disc as if it were a cassette! 

The SCRIBE can create documents far greater in size than the computer memory, and really uses the disc 

as it was intended to be used, SCRIBE automatically loads and offloads pages between disc and memory 

without you even knowing it's happening! 

Amongst the many super features available are: 

* Optional 40 & 80 column screen format selection 

* On screen formatting - you see it as it's printed INCLUDING UNDERLINING- 

* Right justify, word wrap, insert, delete, move copy & centre. 

* Document merge (will merge two documents into one from disc). 

* Addresses all four drive units allowed by your BBC disc system. 

Plus many more professional features. 

SCRIBE comes in ROM with five minute fitting instructions, printer utilities on disc and a comprehensive 

ma " Ual PRICE £59.95 

Afso MERLIN SCRIBE in ROM for cassette machines £29.95, and on tape £19.95. All prices include VAT, 
Post and P ackaging 60p. 

■■■■■ MERLIN COMPUTER PRODUCTS {BUCON LIMITED) 

WW 18 MANSE L STREET, SWANSEA, SA1 5SG, TEH0792) 467980 



Acres*. 





£650 



See us on Stand 211 at the i 

CHAZT CAVEMAN - Jour iwy b#ck so pnhamr >£ 

ii ifri A r.itw u1 c#*t r+Mpl !<rr» wmJi i>ui * hunting 
{MOV, but lh* "n»" *'* K*n»» *ti wf*i*n in»v in 
jTibuitadDva hug* Mta'*-lDOi*»*iJ ti'jwf ' Yeuit 
O n* of IM*M KsJflitr l UdllllKi tmm r our 
cnmpin io.cn •P*fl i tong *** »om ifwHwr vckj begirt 
lhr r>«t«rcJtiu!li , sk horrvtj On l*iB wr>' i*»tb »»r rri jny 
danflif n . likj SO LLING HOCKS. DINOSAURS. 
OOOOS *,»*□ PflEMlStDrllC HfflDS 



EACH 
INCL 



I Christmas Fair 




For 

the 



© 




rji *■ 



BLUE MOON i You *•■ 1"n* pilot o< *n inlirgjtidX 
*UJK»i<*tT Vour miitioii.ilBFtKviiiiflfr fAij, 
*nS Hf cr#* * nn »r» 1 r*pp*.1 on a ho«i>1* pi»n#t and 
(a p*iurn mm pt*rn to lh* utrty al tit* hi* Moon 

HD1HYI' |ihjin*y.ri.g K'OHttl* >nlwi d'iok* 

eH**v&HJE BOUNCERS. COMETS BFll flifiO^ 
OflOtDS »nrt Tf COM A4.CNS 



■ P'o»w mika ch«tnj*i piyib* lo ME HUN SOFTWARE • 

* S«ddr.o Bu*fn*HAT*ctinok>gvG*'ilta B*u*m*f Of m* Sirwfnag*. H*rts SO 1 IOX ■ 



i ENCLOSE CHEQUE P O to* f . 
NAME 



" ADORESS 



TfCKHEQUIREOTlTLE^Si 



X.CH 



X 



..TT. . . . i 



DODG'EM 



ARCADE ACTION - B8C MODELS A* & B 

Features: Two Driving Speeds, 1E Difficulty 
Levels, up to 3 Computer Controlled 'Jam' 
Cars, Hall of Fame, Sound, and Colour, 

Available by Mail Order from Microgame 
Simulations or from larger branches of 
W.H, Smiths. 



£5.95 




73 Tb* Broadway, Grant chaitar, Cambridge CB3 9NQ 



YOUR COMPUTER, DECEMBER 1983 53 




X3K 



THE ULTIMATE 
IK/1I II ATOM!! 




As seen throuah 
the eyes of a, 

PHANTOM £,$&' 




THIS IS THE STATE OP THE ART IN SIMULATION 



Dealers Welcome 



D ISPATC H WlTHfN ?4 HAS OF IECEIVING ORDER 

M(CRO MART SOFTWARE. GrwmhMI IndUftrid Eit*™ 
Kidd«rm<n*<«r, Wom 

PLEASE SEND ME „TRfKE ATTACK (ENCLOSE ACHEQt 
P*/0. ACCESS FOR THE AMOUNT OF £7 45 (.nclu.Jinp P&Pi 

N*me 

Addrutt 



Acoii CvdNo 



4 it ilUihoWfl 



OH TELEPHONE KIDDERMINSTER I0S62I 743142 WiTH YOUR 
ACCESS CARD NO 



MICRD 



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your 




xinnvi 



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for 



ALL MICRO COMPUTERS - SOFTWARE & 

PERIPHERALS - tNCLUDING QRIC - 

SINCLAIR TEXAS LYNX 

COMMODORE & MANY 

MORE !f 



Please Contact 

MlCfiO X LIMITED 
5 COVERDALE ROAD, 
BN0NDES6URY LONDON NW2 4DB 
TELEPHONE 01-459 1089 
TELEX 295931 UNICOM G 




TELESOUND 84 

(Pdtent PenUiny) 




*n 



SPECTRUM BEEP BOOSTER 
. , . Puts Sound Through TV . . . 



Ptob.ibiy the wi/fhl $ \iu.iitr\t *,tntttii 
nnnltihii.it, nifitsufirnj ?' t * /'j * ft in 

7£L£SQUNQ 84 tits msttte thr /x Spvcttum 

and most other home COttt pt /tviS to en.tb/t* thv 

BEEP to be heatti duvLtty horn ,m unmodttui! 

TV Sound can be cottirutft'd by the tV hunt a 

whtspvr to it torn Fitttny takes only tntnutcs. 

wrlh three ttssy ±n<tp on connections. 

eliminating sokierniy Deaiei enquiries 

welcome 

TELESOUND 84 costs £8 95 inclusive from 

COMPUSOUND 

32 LangJey Close, RedditcK 
Worcs B98 OET 



VOUfl COMPUTER DECEMBER 1983 





C ALPAC 
CHEMISTRY 



IT**** f*v*» *m» tat bum 
dmgnad to ithjrtnn your 



dMmWrfHOlnil Huwl^fl 

-„!l-;.-Jr*J li .1 -.ci Ehf *iu«l 



t^UJ'A* UJMf* li KSUHWAKl 

lilt tli< Mitt^o Muthdi i.ii.x.iiii 

M jiihflt, WOkJM., Surrey tiL.I IVF 

PflSCfe I IS I 

. \| 1>AI I I ^MM.MKII'S VOL I 

I u rv I I VRMM.SERJK3 ■ 
i U r.v . i VKMSC SI Klhu'l 
^ U IV i KfeMlSJKVM Kit *» vol i 
KM I Ml'MlilHY'Sf-Kli-s VOI i 
CAU*M KAI I tHNi 



num £9W 

|*N S.^,.;«iiji £7W 

I ok /Xki *■ * 



AJdill 

i! , 



,. LhAJtSlNt/itKJfciuifcluili. ■ 



O-LEVEL 




Sououh. bonding and 

nff KtlvHy HnD 
Aildt hutud uh> 



Our M.ttv* j.. iv Mtltibte t H.'h«wi • , 

utbcfChU *** telephone:- IMS *7 MW 

vu *. ■uio hfe i- bent team ivod prapwawnert, fndu Khcn 

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liHi \lmlcl ti *rtd lUIX'j (MCbMN 



YUUWLOMPUlfcft. OtCtMBtH 1^83 SS 



&22&, 




SEVERN SOFTWWE 
S SCHOOL CHESCTNT 

LTPNEY 
GLOUCESTER £L I & STA 



SEvcmscnvwc 



/nORIA 



rfV 5 " 



\ 



Morto A challenging adventure game 
h4 in the mines of Mono; Toull have to 
try and survive encaunlers With 111* 

monster* or rmda le- earth while irymg to 
locate Duiini Sing The "Wliard and 1h* 
Trad*! may help a? hinder you on your 

lout ney !o end ana op*n 1 n * hidden 

doors lo freedom a gam* that will 

really i«t yaui character and staying 

pomi 

One Author - Adrian Sheppaid 

Spectrum Aulhor - Mike Howard 

One «K t* t* Spectrum l*4M « « 



The REAL 



t Guide your loggeu aciou a 4 
lap* motorway and crocodile infested 
river lo reach then sale haven through 
the gap in ihe fence I ach Time a 
logger u *af • ly ham* the next on* will 
have to en counter more lorries and can 
on lh» motorway bu! fewer crocodile* 
and lag* m the nv« Full on *cre*n 
instructions ht code sound elJects and 

ftlUaclioncoioui graphics, 

One Author Adrian Sheppaid 
Spectrum Author Mike Howard 
OncMK t* « Spectrum i 6. 4* E t4 »i 



Challenge! 

For your ORIC or SPECTRUM 




ARCADE ACTION 1 


lip 


P 


I7i 


r- 1 


r^ 


■* 




* 




r c 



fiu incy \ t-uperb dice game for 3 lo ft 
players ! throw* pel go lo try arid score 
point* E>y obtaining Certain 
combiftaiiow i m 3 of a Hind a run 
pom etc lJgo*tocomplm»again* 
The higheil *coie it the winner* ft i a 
game that is easy to learn but can be 
won by skilful and thoughtful play Full 
colour graphic* on-ici*<n instruction* 
bonus score* etc 
Author Tony Churcher 
Spectrum ur m *s 



<■ rail You have been chosen, lo seek and 
lecovei Die Holy Grail Horn the Castle 
Perilous Throughout (he court* atyoui 
jtiiit you will have lo uee your fJdll 
intelligence and logic [along with a 
Utile luck) at you encountet many loe* 
Tou will hare the opportunity to gather 
weapon* and armour to Sghl with but U 
you are wounded your strength wU) 
d ram mat manf ottiei (ealurei such 

a worp r*weu me 
Author - Adrian Sheppaid 
Onceet «« 



DlnJre Kong Afterr.pl la rescue your 
lovely juiinena who u held captive by 
the angry gOrtlla As you climb the 
connecting ladders and nova along Uw 
gangways the gorilla will b* throwing 
baneU and fireball* at you 1 The only 
way io teach her u lo leap over the** 
Obstacles and progress to the top 
Mcode action wlih sound effect* tun 
colour action graphics skill levels etc 
Author - Adrian Sheppaid 
Ont4»K MM 





Ortcade A combined asseniblei 
DMamnbtei and editor tot the? 
One #ltandlH(ul1eo03 
Mnemonics • r*atut*i Save and 
Reload M C * Assembles and 
disassemble* al any addtew 
*An essential too! lor any 
serious programmer 
Aurhu! - Adrian Sheppaid 
Ode MX MM 

One titles recommended by 
OfilC PEOPtlCTS INT LTD 

All Spectrum Software u 
available on Micro net bod 

TRADE ENQUIRIES 
WELCOME 



All One ml** available (ram Laikys 

Dinky Kong lor Ottc aiea available f mm WH Smith 



n; 



Please lend me (Tick boa) 
SPECTRUM 1<W4H OBlCeAX 






jjogoei " t*« 

_|ouincy WW 

|0 



j logger - U«S 

□Dinky Kong 
te« 



1 enclose Cheque F O tot t_ 
payable to Severn Softwaie 



made 



Name. 



I Mono H9J 



D 



Mono i tees 



^Oncade ■■■ UiO 



Addr< 



D 



grail p t* »i 



Severn Sortware 4 ScHool Cretcenl Lvdney Gloucester H3L115TA 
All once* include vat and r»F 
Overseas PM add sop 




Jfc= 



Atmri and Spectrum owner ir 
On Ehc bounce for lomethlng different? 
It's the rantest, crasest fun-pacKed expenenee i«t, twenty haard-fi«eO levels 

«reens full of streams! 
Leggu down to W H Smiths, John Menkes, Boots or one of our dealers 
nationwide and ftntf out why Jumping Jack/Lerjgri will make 
you cry with laughter. 



w 5 St Thomas Street 

Liverpool Meneyjidf LI 6SW 

Dealer Enqurtes Contact 

Co* Sokes on ON 336 8100 (» Una) 






/ 



► 



fit* x 



vrith 



•elting 



lGi 




-:m 



■/ 



Our software is available from all Oric dealers and 

most good software suppliers. In case of difficulty 

please contact us on Teversham (02205) 2261 or write to us at: 




t 



Unit 1 & 2. Techno Park, Newmarket Road. Cambridge 




ORIC Software 



OWC SOFTWARE 



ORIC MOM 






ORICMUNCH 

Munch the 

Bugmonsters and 

eat me power pills, 

clear the maze to 

reach the high 

score. £7.95 inc. 

VAT-l6Kor48K 



ORIC-MON 
Includes mnemonic 
as s em b le r di sasse mble r , 
block move and verify, 
data and text entry and 
cassette and printer 
handling Includes 
manual. £15,0 inc. VAT- 
16K or 48K 



OfBCSOfTWAHE 



ORICMUNCH 



*♦ 



t • 



J^-jr 



ORICBASE 
A complete 
database system. 
A sophisticated 
query language 
allows you to 
search and sort 
your data, keep 
running totals and 
print reports. Full 
manual. £14.50 
inc. VAT - 48K 



House 
of Death 



An impressive follow-up to 
Zodiac, discover ihe secrets 
of the haunted house, avoid 
the witch and the axe 
murderer and come away 
with incredible treasures 
£9.99 inc VAT - 48K 

ZODIAC 

One of our most successful 
games. Discover the twelve 
cunningly disguised signs of 
the zodiac which will lead 
you to six treasures. Full of 
puzzles, puns and misleading 
clues, £9.99 inc. VAT - 48K 



ORlCO\ 



TANSOFT LANGUAGE 
MASTERCLASS 

If you are going abroad for 
pleasure or business these 
courses will g»ve you a basic 
understanding of the 
language Based on the new 
Gruneberg Link -Word 
method. 



Spanish 
Italian 
German 
French 



supplied with program 
cassette and spoken 
vocabulary pronunciation 
cassette. £12.95 each inc 
VAT-40K 



FORTH 

A full implementation of 
this exciting new computer 
language Includes editor 
ana assembler plus 
language extensions 
£15.00 inc VAT- 4flK. 



,3rtT 



You racei fed your firs) issue of One Owner free with your 
machine Why not subscribe now and keep in touch with 
the latest developments m the One range 





I 



[ 



USE YOUR NOGGIN AND WIN £10,000. 

Y<hj intght think you're 4 computer *>jr- p 

preny flood myself. But I've (jot new*; for /wi 1 IV'litMwnd 

I games and Ihi id 

So i< you'f a . ycMi migM at w< 

81 < AUSE YOU WON'T STAND A CHANCE IN MY If 
GH AN D SLAM 

11 voo can cope with a rual challenge, tf y one of my suite of 
mind-sin ' you'fi' really rofif-ricni buy all i 

■ . ■ 

'* game* <i< <; md- but *-adi has .i duo 

ivel the ckif?* ami: put them toor He. 

fir.i 10 who can wirl be finalist*. <n my 
iND SLAM in win a cool f 10,000 

be j'i all-rounder he<,ius>- -<<mr 
'TW your <K'M*'<ll krvnvie' 



puI'TS. But tfl Mer vwi'vt 



Strain - armed only -.nh a < umpau and a "mp of 
Brit .*'*vi. VOU musl i"id up jt The rwjht taftnn 

h • 

a M i<.'.! I b taxes not <t muai 

•<>so your mind. Bomb the enemy fleet tiir«..jofi thn 
.ind '.tinoi rlnwn m i do^m. 

* ike a tnp around thr city, punt on tlw ( 
tltve of 1 the pangs of I nd try lo n acb yc*«< 

D. Othello tail your powers of I th this anc» nt <iame. 

playimi ,*gatnf| <;ach other or » 

escape from •*» [»'il* o< tt ibt.iin 

the keys to escape from the rtungtor. 
F. The Qui* - test your knov. piayin<j ag 

each «"»iber or the rjomputer in a bt1 <eji th> (lock. 

TEN G HAND-SCAM entry mVipctiom » II (■ <jd v.rlh 

pu/ctmed. 

All Garnet are luitibte for BBC, Dragon jnd Sind-nr horn* 
compuiiTi 



^^ ,, < 




r 
I 



TO: TWIG SYSTEMS SOFTWARE, 6 HIGH STREET, WENDOVER, BUCKS, ENGLAND. 

My Name ii; , .»*....... 

My Address : ,.,,,,.,,,..,.............. 



\ wish to purchase the following cassettes 
Prirti quoted art ineHrtiiM ot VAT. 



II 

I 
I 
I 



n » * e i ■ * * m » e 



I own a computer Make 
Model 



Cheque 



'.O. LI 



Access 



D 



Barclay card 



□ 



A, Take the Strain 

B, Air Sea Missile £9.00 each 

C. Cambridge or 

D, Othello £45.00 for 

E. The Tower the set 

F. The Qui* 
Post and Packing 

I enclose my total remittance of £ 



L 



Access/ Bar day card No. i 



m 



1.00 



I 
I 
I 
I 

I 
I 




w» »t't *< ctprHirm to T#*e Rvtf**nt !■-<" "«»p » lutftt* (■' <p*iI<i <ph| i ■■mliiiimi oi «•*. rc»lP<*» ■»' *t<" li «(» »va<M<t* M) laQiiMt 



VIC TAPE BACK UP 



ic Trt^ 



« T 1 »T*rK*» H*aa**<v-w**» 



REMIN|> MHft 



H«VC 



lACKUP TAPC 



COHfLt TI 



VIC TAPE BACKUP i* a nftw end unique machine to dfl 
program which can provide security backup copiers of moji 
VlC-20 program* current ly available 

• will backup meat lypw of pngnm, m BASIC or machma-ccKfe 

• Defailad inslrucUOn* provKJad 

• Vary aaay lo u»a wtlh aud»vtaual prompting wyatarn 

• Norsk* 10 Dtifltnal 'ape* 

• Works wirt' ah mim«if tonltgur jtions 

• Allowance for k*3 arrCT* 

• Wnttsn (or RtHO WtU, nOHd aaoon in CBM VIC pfoajutmmmo 

Pries E7.15 (rncludaa VAT. post and packing - n* antral! 

Send ordart with Chaquc PO cosm*} 'a c [*»*<»' rnada out lo L*v*» Soft 

vwa Lid lo tha tjiikthuto't 

LEVEL SOFTWARE LTD PO BOX 5S. SHtftlEV SOLIHULL 890 4SL 

TEL 021 t43«72t 

Trn« aregiwn « mm rtrcth on CDndrHn pmi purctwi lib <i ont» »o r*k» wcumY 

back* coowi o* lapm w*wh irw, rwi for than gwfi Hat 

l h*vi m4 and und#r*Ktfa (tw c cmdif w>i tfld Bfta 10 MM* try tf*n 



'-.M4' J' J" 



MAMC 

aoopess 



, 1 1 n 







THE 




MICRO WORKSHOP 

MICRO COMPUTER 
SPECIALISTS 



Software and hardware over the counter for 
Sinclair Spectrum, ZX-81, BBC, Vic-20, CBM 64 
etc. 

* COMPUTERS * RAMPACKS 

* JOYSTICKS " BOOKS 

* KEYBOARDS " DISCS 

* TAPES * LIGHT PENS 

• COMPONENTS * 

Business/Serious Programs available 

Located directly opposite Epsom Mail Line 

Station. Visit us or ring for friendly service. Sec 

and try before you buy. 



12 STATION APPROACH 

EPSOM, SURREY. 

EPSOM 21533 



c3gt> 48K ZX SPECTRUM 

NEW RELEASES . . . 



CAN SOMEONE GUIDE ZIPPY THROUGH ALL 7 LEVELS 
TO THE EXIT £500 AWAITS THE SPLAT CHALLENGER 
WITH THE HIGHEST SCORE 

An Original & Enfe naming game thai 
gets you hooked" 

PCM 



£5.50 




MOUNTAINS ^nSiSS^ 
of KET ftB*-— — 

A GIANT OF AN ADVENTURE PROGRAM' THE MANY 
FEATURES INCLUDE COMBAT. INTERACTIVE BEINGS, 
MONETARY SYSTEM FIRST YOU HAVE TO FIND THE 
MOUNTAINS THEN * AS WEIL AS BEING A FAST 
INGENIOUS COMPELLING ADVENTURE IN ITSELF - 
THE MOUNTAINS OF KET IS THE FIRST OF A 3 PART 
SERIES THAT BUILDS INTO A MAMMOTH 
ADVENTURERS CHALLENGE 

BYR.A McCORMACK £5.50 



1984 




GOVEKNMBNT 
MANAGEMENT 



THE BRITISH ECONOMY WITH TOD AT THE CONTROLS' 
WHAT SORT OF CHANCELLOR WOULD YOU MAKE 
WITH SEVERAL BILLION POUNDS TO SPEND h FIVE 
YEARS TO THE NEXT GENERAL ELECTION"? GRAPHIC 
DISPLAYS, HISTOGRAMS ft A ANNUAL PERFORMANCE 
RATING ARE ALL INCLUDED TO SHOW HOW YOU ARE 
DOING HOW MANY YEARS WILL YOU LAST* 

ELECTED BY R M H CARTER £5 . 50 



All programs run m the 48K ZX SPECTRUM and arc 
available from all good computer shops In cat 

icultv please order direct using the coupon below 



r arriamoii rtocuutimts 

TOPBO'- 1ME5WAMTEI 

MAKES Of POPULAR HOM 



Please send me 
{please tick) 



SPLAT 

MOUNTAINS OF KET 
1984 



All at £5 50 each (inclusive of VAT. and I st class postage} 
I enclose cheque/PO for £ or please debit my 

Access account no 



n 



Name 



Address 



CJSJ 



ISL, 



WtlimVF MFTWJMS Lt* 

■>* LOH&OII VTHFT HADW£<0r}4]4ai«ra 



o 



YOUfi COMPUTES. DECEMBER 1983 61 



STA CK LIGHT RIFLE 



Available for the SPECTRUM, VIC 20, 

and the COMMODORE 64. comes 

co mp fete with 12 feet of cable and 

three exciting action software games 

including "HIGH NOON SHOOTOUT" 

with full sound effects* 





With the development of the SLR 
comes the exciting range of 
software, RATS & CATS. HIGH 
NOON SHOOTOUT, CROW SHOOT, 
ESCAPE FROM ALCATRAZ, 
GLORIOUS TWELFTH and BIG 
GAME SAFARI 

CONTACT YOUR LOCAL DEALER 
OR ORDER DIRECT FROM 



All this for the incredible price of only 





including V.A, T. 



* 



wr% «* Myp 


»> 



Computer S#nric*t Limit*d 

290/298 Deft* Road Boofle Merseyside L2G SIN 
Tel Sales 031 ■•33 3911 Service 031 -933 3339 

TeJe* 627026 i Sfach-Gl 



SPECTRUM 
RAM UPGRADE 
16K-48K 




EASY TO FIT, 

CHIPS JUST 
PLUG IN. 

NO SOLDERING. 
SENT WITHIN 10 
DAYS 




ISSUE TWO 

MACHINES ONLY 
(BLUE KEYS! 

S,A.E.fordit»ilj, 
pii 



DISPLAY INSTRUCTION SHEET 

Get the best possible results from your Spectrum 
Deals with yellowish white, wobbling colours etc. 
Send CI plus Stamped Addressed Envelope 

MAIL ORDERS ONLY. Cheques/P.Os to: 
FOUNTAIN COMPUTERS LIMITED 
Bishops Court, 



Bishopstoke, 
EASTLEIGH 
Hants r SOB 6PE 
(0703i 61 6506 



SORRY . NO OVERSEAS 
ORDERS ACCEPTED 
(including 8FPO. Channel 
ItlancK and Eirap. 



software 



SPECTRUM SPECIALS 



COMPACT MONO TAPE RECORDER Fu»|y t«t«J 
•nd flvrantMd compalabrii!*- *flh tKfifi 
SPECTRuMS «J £X 8) Atrio rmrdbval auto 

nop. etKtf k <mMn« me, AC mams, b»n*ry 

OOtf-tfPOfl, tfirdy construction wrtth black and |un 
metal Nu*ri Supped mthont FACELIFT DeU 
(juxithr 



*Z> OrtoO TELEPLAN T« MISSING UNH IN 
SPECTRUM VISUAL PLANNING tSHtRf! Our 

LTinKie xrMTi avccUv h*tcri jroo loula *nd plan 
prtrtt Krwttons wrwf * >h*y count on yen* Ifltewiwsn 
K/ean Clear 'Itatfc *rv jci pMsic: taw «*- 
tcrtaned lor ton* Irte Lf« it wilt convert ■?«#< 
frapho p4*nrw< p*o» »n<J loMdlNnpic 1 
Qurrinrfy nmu tor J6 - «*** wft uMtf ««* 
SPECTOLHlSonV: 




GIVE roufl PROGRAMMING A FACELIFT 

WITH OUR SPECIAL CIS OATa CASSf TTE S 

A short lead-in m«*rrti* crw«K the SPECTRUM alpha** structure lust bad and 

'«ord ne* took proufamfnes Suaphod m pec** oi i«a<« 16K or 4fln> C3*79 

*I> OrtOytMOONLANDER fUK SPECTRUM) Uwi t* lapp**' FoNow adronaut 
Nod Af fn^lronit t" »l man on trte moon A new wwingl |ht idHme d*UK W*rj 
camtant outer aan morrtonna, tfafu* chactu. dotaAand itVRStan Syilaivi oracle* 
moo*, adlaodrnjorntout* and* tuntfui Slats and Stripe* Thn«a<r* itmUalion 
i*ke* gu« to r«eti a whr iwxhoown Sari wdha ma Apt*, Moon Mao £4*95 



PtMM 



,QrtOriliClf>IJfClt»Na>>HCTlHJ>»r 



^VQrtonTmtjiwJ 



•)' om enc^bsrtp my /owe* oi ntcasaory/ cheque Posfc* Odef 
lntemo*iO^WbneyOri3er* rrratopoyabteto ORION S<FTWARE_ 



LABEL POST 



SlOCXCAHfTAtS 



fVAMf 
ADDQfSS 



taWorion 



^PQSKQDt. 



P»pptxooii Mill. London Road. Owkmg Suney 



62 YOUR COMPUTER, D€C£MBER t»B3 



:^yt<\ 



For the BBC Micro 



K 



■*U*: 



l 8 "**"** 



For the Spectrum: 

Easy Programming for the Spectrum 
Ian Stewart & Robin Jones £5 95 



Further Programming for the Spectrum 
Ian Stewart & Robin Jones £5 95 

Spectrum Machine Code 

Ian Stewart & Robin Jones £5. 95 

Games to Play on your Spectrum 
Martin Wren -Hi I ton £195 

Spectrum Special 1.2 & 3 

Three cassettes, each of 10 games 

and puzzles programs 

Ian Stewart & Robin Jones £5.95 each 



Easy Programming for the BBC Micro 
Eric Deeson £5 95 

Further Programming for the BBC Micro 
Alan Thomas £5 95 

BBC Micro Assembly Language 
Bruce Smith £7 95 



For the Dra g on 32: 

Easy Programming tor the Dragon 32 
!an Stewart & Robm Jones £5 95 

Further Programming for the Dragon 32 
Ian Stewart & Robin Jones £5,95 

For the Oric - 1 : 



Easy Programming for the Oric-1 

Ian Stewart & Robin Jones £5 95 

Games to Play on Your Oric-1 
'Czes Kosmowski £4.95 



For the Commodore 64: 



Easy Programming for the Commodore 64 
Ian Stewart & Robin Jones £6 95 



For all Computer Enthusiasts: 



Computing: A Bug's Eye View 
Cosgrove £2 95 

Brainteasers for BASIC Computers 

Gordon Lee £4.95 



Shiva Publishing Limited 

4 Church Lane, Nantwich, Cheshire CW5 5RQ England 
Tel: (0270) 628272 Telex: 367258 (GASEQP) 



YOUR COMPUTER DECEMBER 1983 S3 



<£. €. S. & p t e m a 



experts in business systems now bringing professionalism into the home 
market for the SPECTRUM, ORIC, DRAGON and APPLE II micro-computers. 




VIDEO CHALtENGI 



: 6H2 ASSEMBLE* tOTTON 
PtobaoV |h* b«t OWC program on 
tha martial W«th ttm powartu* 
tu.lt *«• Iftt lu* potanliai of tha 
OWC can t» raaaaad by *ntr>g your 
o*n madwia coda progrtma and 

f u" QpafaaiPQ vtattuCTiona aff 
CKajdad f7 95 



u ~ — -^ 

^ — ^ 



DHAGON **09 ASSfMBUfc' 

EDnCHtlandLmuTlESI 

Wrth rhao poioart J atrttwara raahaa 
Itw rul pdCaffhat of f hai aptaAdld 
mere tv wrnfcaio, your oMm mipwa 
coot proejnma and (ouivias. Cftvi 

fo* Si OOVlsf ffwarnonica 

Fu» sparring riatructian* *n» 




VIDEO CHALLENGE 




3 i $$433*1 nffl 




DRAW 



VCt OO fontam tour quaalf action 

Dachau programs 

Onc.CbwOn (6 95 



VC20 conum anotrtar four rjuaaiv 
aciMn patkad pr o gram* 

C* 95 

Iby QFD daaajpar C A Smtnl 



VIDEO CHALLENGE 




' — 1 — 1 — 1 — 1 — 1 


3-s-i- 



•I ) 1 1 1 -1 ■] 




Adantu Igr tha Dragon 32 

An aiciing. and cHaMngmg game 

*rwri your rrasanon n to daitroy 
ina crr> o< Atlanta Bui b»**rt 
*i Ina garna pugumi your 
nyuwi bacema* ■v.'friis'rgrv nny* 

tS.M 
Itur QF rjaaionar M l>«onl 



VC1-A uidao oama* apaoafv *w trta 
AMtl I * Avariabta on bom 



4d*t> I CB 95 




VIDEO 







-ZZZ 








~II£ 




' c ' ' 


» s 


aHoaajusi 



LINK-FOUB 



BUG 

L 
A 

s 

T 



# 




J 



taw«ng o* LDfl 



iff, rtt r& r% <fo Jt J 

M] I* *TV A H < I 




VIDEO CHALLENGE gama* lor irw Soacirum Four owaaiy g*m*» 
onaachcauaittVCVt f A 95 VC2 « f • 8S 

[All programs are supplied on quality cassettes, unless otherwise stated 
Please send me on cassette/disc .......... ,..♦ 



for my MICRO with 

I enclose my cheque/ postal order Cor £ . 



memory. 




THE VARIETY PACK 
3b ipaoa** aaiaclad prpanrn* to 
naaaaa tha potential o* your Raw 
mere ln» bail yak* vnn) lodaV 
ioactnim. One. bagon ( 5 95 

■LtSS THAN- 2*(i pei program' I 




HOME 

accounts 
Emakagement 



ttrttti.ui. 



I 



HOME ACCOUNTS MANA Gf < MF N T 
r*i*n ai v«ur Inancujl alf a»r» *rrtri trm 
OEO qualffv ivi-tarr, Foalum nduda 
Imljal cnaCnn, mamtartarice and 
balanct Of #■ account* [«lAnfl 
era* cat4tl f u* fflDrnemg of 
t»pana»» aoam*i budo«l anrj 
ramotna aipanaa r»porrmg Tnat 
ty*l«m i* myuitad »tth tul 
Soeuman! aiKjn and ooaratmg 
"ataKfujrvi 

Spactnan.. Oris, rjraaon . f10 95 

Idwcttt495 



(payabfe to Q.E.D. Systemsl. 



Name , - Telephone No. 

Address 



QE.D SYSTEMS. 2 SEFTON GARDENS, AUGMTON GREEN. ORMSKIRK. LANCS.. L39 6RZ 




64 YOUR COMPUTER DECEMB8 H 1SS3 





Aitffotd Minor 

M rtthiiH 
cad* aim* *»u to iha 

At you binu to h»i 

?'Kr. ■>.» lltHOld 

tiWlim vqu m*i ig cwnfril in 
jbuIoui mm wha) noat it 

"9 

C*n ton filhor inougri 
ailftoidi to turn**? Art tou 
tkifhil an<mgh 10 * void your 

OOiOtWnta nturcr m-riM- 

ca 9b 



HU 



D*tui 

A hrgh pgwirad tn* to 

ttlitiii rt'iing md iitif««v 
|nn 

■ Daian vdu can criitt 

i « tin pan* nmpi» and 

i£**Mv noting in*tn for lilK 

Li»m toi this, vtntfilt 
• thop window duptfyr 
uhoo' n*wtoap*<i pttionaftiaa' 
noti boota lot chitdrtit ind man* 



OftMHM 

machine cod* monitor 

dMI|fl*4 10 hfip "hi tvOtgl 

many l*»tur*i mtroai (WO 
modti ol Mtno full 

dniitimblir vvilh OS Clltt 
Ubtilfd ifttflMtni fcioci manwrr 
movti * tpftqr nnng an:' 
oylt ir*«th 

8*|iMMfi wtll lind Opumao i 
ability id dttpJty tht opcodtt li 
650? rtintmon.*: 



j Please send ihtj following cassenes, BBC Model B version 



Software. 
With a touch 
of brilliance 




Atomic Protector 
Sea Woll 
Aituoid Miw 

OltMl 

Oplirnon 



Prut 

vi- 



ce 95 
£8 95 
CB 95 
£995 
£9 95 






| It* M* iw ml —* mi«|"H 

t«n St tv 2 * wii TOTAL 



Amount 



Name ... 
Address . 









■ 




L_ 



i enclose cheque made payable lo Optima Software Ltd. 

» wish to pay by No „ 

Access : Visa Expiry date , 

Optima Software Lid., 36 St Pelersgate, Stockport SKI 1ML. 





SOFTWARE 

THE PYRAMID is an arcade style game which has a very adventurous feel to it. 

The Pyramid contains 1 20 chambers on T 5 levels. In order to get from one chamber to another 
you must frght off the indigenous aliens to collect an energised crystal which will neutralize the 
force field guarding the two exits. ^ 

The Fyramid is inhabited by a total of 60 wierd and exotic alien types, all of which are 
beautifully animated. You will meet a whole variety of demons, droids, insects and monsters, with a 
sprinkling of the more unusual, the extra-terrestrial tweezers, galactic strawberry cosmic claw, 
mutant eye, plus a whole host of entities that defy rational description. You will no doubt invent 
your own nicknames. ^ . J* 

You proceed to explore the Pyramid from top to bottom with the difficulty generally 
increasing with the depth of ievef. Depending on the choice of exit from each chamber you are likely 
to have a different game every time you play 

Apart from the challenge of trying tcW 
achieve the highest score possible the 
pyramid contains a number puzzle to 
solve. The more chambers you 
successfully visit the more informatian 
is gathered to enable you to discover 
the secret numbers of the pyramid. 
The puzzle won't take you a 
few days to sofve, it will 
probably take you a 
few months. 



This 1$ 2JGGY* . He Is shown 
above In his exploratory capsule 
and Is a true r e p rese n tation of 
the on screen graphics. You 
have total control over his 
movements as you explore 
the many chambers of 
THE PYRAMID". 



CAl 




FANTASY SOFTWARE 
is available from WH.Smrths, 
John Menkes and 
Computers For AJ 




Compatible w«h afl leadingjoysucks 




For48K 

Spectrum 



THE PYRAMID is avertable at £5 50 from 
FANTASY SOFTWARE, FAUCONBERG LODGE 27AST GEORGES ROAD, CHELTENHAM, GLOS 
despatched try return first class post together w»th a membership number enuring you to discount 

on our forthcoming blockbusting software 
Tran> Fnm UriK wf>lr/vnA , tetPnhnn* n?4:>_^AAl 




747 FLIGHT SIMULATOR 



Ooc Tr 



THE BEST SIMULATION AROUND, 

A MUST FOR ALL BUDDING PILOTS", PCN 

frrjm DOCTOR SOFT. 

2b& ConvrQtma Rd. Peterborctugri 





Pilot written, 
instruments and 

30 visual r unWiiy w 'i«w 

{Heathrow. Gatwiekl. Banks 

and pitches wilh realistic motion. Now with full 

Instrument Landing System IILSi Briefing program, charts, notes and flight plan Fantastic' 

ONLY E8.95 me VAT & PAP. Joystick control option in 4 program package- DEALERS CONTACT (09031 206076 

DISC VERSION NOW AVAILABLE GENEROUS ROYALTIES PAID FOR GOOD MATERIAL 



* AvaMahto t>om 
40*hMtN**S AAltlAU. LEMHHG « *Ll P^ 

* r*e«ciiV!i 800 IfHntall 



|i 
IS 

I 

luj| 



3 DOUBLE ACTS FOR CHRISTMAS 

O Spook. Spook (MUNCHER 20mazes,Jsliitl*,Hall of Fam«/GHOST MINE dig for gold, watch for ghosts * snake} f 6 95 

D Space. Sp*ce|WOOLPACK ID amazing colour graphics. 3 ship*. 4 galaxies aliens galore*/ MISS ION ALPHA: 30 Si music) £7 95 

D Spy Spy (KREMLIN escape from 3D ma« m Kremlin/ BONDSKI lethal action on ski slope*') £6 95 

GAMES DISC PACKAGE 

□ rV*jncher. Ghost Mine. MissonAJphe. Kremlin. Bondski & Fireman (the building bums the people jump, the helicopter bomb*? !) C15 95 
EDUCATIONAL a COLOUR-SHAPE MATCH <2-4yrr old) f 5 95 cuss Q747 SIMULATOR C8 95 

D WORD PERFECT [Friendly & versatile lull facility 4080 column word processor € 7 95. « f 2 95 Dtsc version 

□ TALKING TABLES TEACHER (Spunks when speech ROM fit ted. teaches multiplication with games & quesi ions) £G 95{cassette| 
D FAMILY DISC RACK AGE Tables Teacher, Cokxif Shape Match Harmony Home Off ice & Word Perfect f 15 95 

rot auks ape pavs the af si fon tH( eisr All prices include VAT &PbP Cheque or PO to 

"'Doctor Soft". 258 Coneygree Road, Peterborough PE2 8LR 
NAME 



DOCTOR SOFT 



*m&& 



ADVANCED SOFTWARE 




ADDRESS . 



YC1Z 



Give your children a 
Happy Christmas! 

with these top quality educational games 

■ TIME — learn ir> icl! the time with this Mm pie step by step guide. 
Wuch the mouse run up the clock when you .mwer correcttj — 
educational fun for children of J-fl vcarv (Spectrum 48 K, BBC 
B/Electron), 

• IDENTIKIT — choose from a range of features and build up i face 
M rhc screen. Then you can nuke the eyes wink, ears wiggle, mouth 
imile etc. — great fun for children of 2-8 yean old (Spectrum 48K.) 

• MOSEY — an introduction ro coins and nolei and their use in 
chopping. Many derailed section! with excellent graphic* and sound- 
4-10 years. (Spectrum -IHKl 

• MATHS INVADERS — load your pin with the right answer, and 
fire it before the question lands on you — makes learning .addition, 
subtract ion, multiplication and division fun. 4-12 years old. 
(Speciruro 1&4HK, BBC/Electron) 

• MISSING WORDS — watch the tram move forward when you 
type in the right word Two enle ruining sections leach reading and 
English comprehension. 5-10 years. (Spectrum 48K) 

• RAILROADER — lay track on the screen in any layout you want. 
Then run the train around the irack switching points as you go. Pick 
up extra carriages if you like — great fun for children of 4-10 vears. 
(BBC B Electron) 

• MICROS FOR CHILDREN— 1. Sel of four educational games 
for children of )-8 years old. Build a house, un jumble ihe words, guess 
she picture, find your way out of iht maze — excellent value for 
money. (Spectrum 16/46K) 

Sped rum program £6.92 BBC Bf Electron £7.95 incl p&p 
All programs, comr in attractive, colourful boar* and are ideal 
Christmas presents. 

fw tot? OrViJplity prftgraVmi 

36 Limcficld Ave, 
Whallcy, Lanes BB6 9RT 

firm. "J Hlk anaiiii*' frvm Hxri, .Mrcm #ad l f/mt tfudtn) 




TOP SAVINGS 



PRINTERS- Also Available Seikosha, 
Okl Star, Qume, Olivetti, TEC, 
Mannessnnan Tally. 



lp*on 


Rxao 


229 




RX80F/T 


256 




FX80F/T 


335 




fXl00F/T 


430 


Diablo 


630 (RO) 


169° 


Smith Corona 


TP1 


209 


Juki 


6100 


350 


Ricoh 


RP1300S 


945 




RP1600S 


1165 


froftm 


HR15 


4t9 



COMPUTERS 



Commodor, 


8096 


735 




64 


165 




1541 


165 


Epion 


HX20 


375 




QX10 


1600 


Spectrum 


4o 


109 



Pr»ces exclude VAT Next day insured delivery £10 
Monday lo F rtday 9 00 - 6 00 
Phone for slock availability and out 
of hours collection arrangements 



MAYFAIR MICROS 

5th FLOOR 65 DUKE STREET LONDON Wl Telephone 629 2AS7 



VOLfl COMPUTER OECEMBER 1933 ST 




SKI RUN 

All the excitement and skill of me ski 
slope* with downhill, stolom and 
giant sioiom Pui yourself to the tetl 
and record the fastest timel Nine 
levels o* difficulty High quality 
graphics and brilliant sound effectil! 




L 



It uill blow your mind 




SPACE RAfDER 

Engage m o furious 
j n I er galactic 
mielltgence battle. As 
you try to blast and 
outwit the fast 
developing alien star 
ships Incredible sound 
effects, smooth high 
resolution graphics in 
this lop qualify arcade 
action game. 




LOGGER MANIA 

Can you dodge the 

traffic, jump your logs, 
slip the bears, and get 
home before sunset? A 
game wtlh a difference 
written in all machine 
code with high quality 
graphics 



Post this coupon now to Boom Software 

2-4 Chichester Rents, Chancery Lane, 

London WC2A1 EG 



Please send me the following: 
Sklftun £5,50 Annihilate* II 

Logger Mania £5,50 Space Raider 

Annihilated! (V)C 20) £4,75 Trek (VIC 20) 



£4,75 
Total cheque l*0 enclosed £ 



£550 
£5 50 
£4 75 



payable to loam Software' 



Name 



Address 



1 1 
I 
I 
I 
I 
I 

I 

J 




ANNIHILATOR II 

Defend youf pianel 
ogamst a mighty allien 
invasion All mochine 
code makes for fast 
arid briihonl arcade 
actioni 



and VIC 20 



A MUST FOR 
ANYONE IHIERESTGD 
IN ZX MACHINE CODE! 

The finest range ol utility programs tor ZX Computers 
Used Py professionals Wer y useM 
for beginners 




BBC COMPUTERS 
WEST WALES 

Official Acom/BBC Micro Dealer 

BBC MODEL B.. £399.00 

ACORN ELECTRON £199.00 

(Subject to availability) 

BBCB + DiscI/F £495.00 

Microvitcc Colour Monitor £249.00 

Cumana 10OK single drive £229,00 

Acorn/BBC 100K single drive ,. ..... .£265,00 

Disc Interface Upgrade,, £97,00 

Speech Upgrade , .,..£55.00 

VIEW Wordprocessor £59.00 

TARREN D1GITISER £69.75 

1 a £ W\\—'£t\ ■ lj ■>■ ■■■■■■■■ ■■ ■■■■.■! ■iiiiiiniivip||i|f|fMi * * (If lllltll i *JLr" ■ ™ ? 



Plu» Prxweji, Hptt, Dbk, Sforift, JovmkIu, m, 
ALL PRICKS JNCLUDE VAT. 



rt. 



Jwt add cimape of i 1 per order except Own put? n, which ire 18 l« tccuncor 
delivery. 

Vl H«k probably the WIDEST Tinge of BOOKS, SOFTWARE b 
ACCESSORIES for the BBC Micro in WcM Kilo, £lui ■ lekrtiott for Kvrrtl 
other populjr Computer. Safrwtr* by ACORNSOFT. PROGRAM POW'FR. 
SUPERIOR PKTRONIC5, PStON, GEMINI, COMFITER CONCEPTS, 
AAF, CLARES, BUG-BYTE. RABBIT. LEVEL V, HEWSON, SIMON 
HESSEL, ULTIMATE. QUJCKSJL VA ck ric 

Cttkrt totkemf, tut mftpmm mtkixg a tftettt fmmty, ihcmkt TELEPHVSF. 
FIRST, IB confirm iledb. 

FOR FURTHER DETAILS * SOFTWARE/BOOKS LIST, PLEASE SEND 
A LARGE, SEt-F ADDRESSED, STAMPED ENVELOPE 
(Note: thop ewly' for Xnm, iborUfn likely) 

CARDIGAN ELECTRONICS 

Chancery Lane, Cardigan, Dvfed. 

Tel: 0237 6144S3 

Shop Hours Men- Sat 10 to 5 

CLOSED ALL DAY WEDNESDAY, 

(tod til d*y Saturday 3rd December'! 



-JL -**- -L 



OMNICALC i.48K Specti-umf 
The best Spectrum spreadsheet 

you can buy, Written in machine 
CC-de to be taster, to give you 
more space for Oat a, and to 
allow more features to be 
included, it is guaranteed 
uncrashabie 

* 99 columns or 2 SO rows. 

* Fully prompted input. 

* Entensrwe repeat facilities 

* Supports ALL Spectrum 
functions. 

* Unique iterative facility. 

* Totals/Sub totals 
+ many mora 

It more programs Shared the 

qualtly of OMNICALC Short we 

might see more Sped turns in 

offices * 

Home Computing Weekly 

3/C/B3 

*tt is rCest 'or someone #rio 
hasjust found the spreadsheet 
concept, but tt is also a vary 
powerful tooi tot anyone who 
has used one previously" 
Sinclair User June 1 983 

Complete with comprehensive 
manual. £9,95, 






71 Hi >,*>/. tit H, HOAI> 1 1 MIX >> fitO 2I.A 

tniriitwui-tu&*Hii 

















WHEELIE i48K Speclrurril Take the motorbike 

"^ 4r in your Spectrum for a burn-up Survive humps 

mr bu mps a no tumps, as you seek the el usi ve gfto&tnder 

r sT — and then yout problems realty slart Crash helmets 

\f advisable £5 95 

titf EVOLUTION (*3K Speelnjml Tyrannosaurus Rex Slegosaurus, 

Podopteiyx Brontosautus are some of the creatures on ine 

tascinatmg tourney from tne sian of hie to man Educational 

and tun. this adventure took 3500 million years the first time it was 

pla yed Canyojj do !l quicker^ — iusl£a,95 

CHEVASSEv HOTFOOT lAnySpectfumiCanyoumafeei) across meice-cap 

■y'; ' tthiisi chasms open and close ad around you or help a hungry rabPil m a 

#, ngfltile world 2 original games on one cassette — only 1 4. 95 

v . THt TRAIN GAME (Any Spectrum) The game that starts where model railways left 

oft Full graphics featuring passenger goods & express irams. tunnels, stations. turntable 

bonus games, irate passengers, collisions derailments, end everything else you expect 

from a major railway" — Superb value £5.95 



VOUR COMPUTER DECEMBER 1983 69 




A< 



in 



on the 



printer that adds up to 

less than £2 30 



A Seikosha GP10OA Printer. Plus the c< >rrcct 
interface*, cable and software for either a 
Spectrum or BBC Micro. All at a price thai adds up 
to just £229-95 inc. VAT 

For a superb combination of economy and 
reliability, this package is unbeatable. 

Full graphics capability 

The Seikosha GPUH )A uses standard width 
paper, and prints in an 80 column dot matrix 
format. Printing speed is 50 characters a second 
i ltfOx 7 dots/sec). 



rhci'ppHKiAcnmcs with a tull graphics 
capability 

Apply immediately 

You can buy the Seikosha GP100A Printer at 
any of our dealers throughout the country. For 
the address of the one nearest you, phone thi^ 
number wit h* >ut delay: r^n^^ 

0934419914 UHSl 



vufkUrd unlcv Krial RNJ U h ncqu 

um: w ti h sincbtr Mtrmdnvc Hmm- *pev ih 



Mill ' ,1 '.''! 



BUSINESS 
MACHINES 



DUG Business Machines Unit 15 14 Lyme Crescent. V intcrsiokrRiKid. WeNDfl super \Un H>_'-i l 'H\ 

Pleaoc send me lurther details of (he Seikosha GP1(X)A Printer, ami (he name of my nearest stockist 
I am partis uliirlv interested in Spectrum: — I BBC Micfol J 

Maine 

Address 



/ ^^/ i 27th Century Salam 



Salamander 




1 -> ' " £1 



5^K 




RUlffl 



z? / r £- 




ON THE GRID ONLY DROIDS CAN 
A HEAR YOU SCREAM! J 



W><p 




NOW SHOWING 
DRAGON OR 
SPECTBUMNEARYOU 



STARRING 



UamasWJBKMmt 

Hank Hunk as the Grid Pilot Truly Scrumptious as tfie Blonde 
and Ivor Notion as the Mad Professor 

w'tfh supporting cast - Mungo Martin - Nibs Norman - Nimrod Cain - Damien Danvers 

featuring X, Y Zappere, Mutating Pod, and a cast of thousands (mostly droids) 

and introducing Gloria Ooofbuns as the Lady Astarte 

Gndrunoer £7.95, Please add 50 p p&p to all orders Omgon wntononiv Send A 5 SAE fortuM catalogue 

Dwechon This una other remarliatHe producttons are available al 

selected orancnes ot Boots anaomer computer dealers rKjftoowide •Specfvm v&y&v 

or direct from j^ moiic^gct Ov Outekviva 



5DFTUURRE 



Salamander Software, 17 Norfolk Road, Brighton 6N1 3AA 

COM t NO SOON from the same awesome team: 



■* 



ouaHry wrfwan lor m* Dragon JZQrtc-f and B8C MotM B mtciocampdNnf- 



VOUP COMPUTIfi OCCEMBEH T3B3 71 




BBC MICRO 

REGISTERED REFERRAL CENTRE FOR THE BBC PROJECT 



BEEBUG^ BBC MICRO 

BRITAIN'S LARGEST SINGLE MICRO USER GROUP 



MEMBERSHIP NOW EXCEEDS 20 000 

XOCKi matnbati *'i bt wony BEf BUG pruvum ina turn aaapofl tor th* BBC Mi, ip BEE BUG Mjhujih* now B* 
pagaa -Kikrfatfl na* praduCI «^d» tuCf*«n*n< - Jaju fl aad aaCAdMratr to !*• &8C M»;re. 'i^iint - Hm1» & T,j» Major 

Arotaj* Nnm fra v i atM i - d xrwr wuiy. PIUS mambany oaacauni aehama anth National B awda n PIUS m a ffl fe ar a 
Sat WH UfcJWV 10 H dB i iwa i Vaar Firv im Apra 1982 Hapnnti of a* aauaa aviMbto la manttan 

Aufuatifaptaaafaif tMa* GAMES - S«fc* LOn5*L33K| a n»o oiav* aptc* battW. and Man) Land* ll»K! SuadVourMl 
il^rtPan - vrrvi* at p ama ti BA <or *m bagini m , togathar iMn a **trftm cmnw Ul* Cwf "Contact Poa>i» lot tfr* Saab to 
*ki»*i w*w Id contact wtwi m naad A'r arm* Ho* to put <uh a*i*ard caaaatt* progranai onto drac Fatal ataaaamajnt 
ol ovf popular S-parl tana* on "tumg Fitaa REVIEWS of - MfCRONET. Watford* Ikjetforac't Ooc M"0 Stttam. mo 
EPflQM prfiQrtmrnar*. and Ina law advarary wkaga "Mewm" Thai martin* may* programa nelvda Spalar a Waft. Sucar 
L *'»» Sci^an CharaCtan, Bounca and Swung Wi alao ihcw no* to hoaJ two eo mpta t t acraan pietwaa at onct, and **>t£ h 
'«n»wn tham vi "Dual Scaa»n on tt^aBaat) A CioaaMKd. Brain Taaaar andoutatti So'(m*<* Compa;>i«fi provide* 
compatntva adga to trw* monirv» magare* W* aNc bava Of k*ry popular acattamg o* Hmta and Tip*. 

October l«*u« GAMES MuhchMm a &noppar tip* flama witti tupai grapnca lauMwia grapnel and lound you 
won e B a t a. ni A Varvtta* H tn ti W i Ba a proc/«m for Bate Fabric Panama an ivta*** Alarm Dock. Date Sac tor String 
Saprchanda e#ogyam ft* Srawftg X) Surfaca* Artitfaa on t*» TaMart Mod* for Uonm. C ampjlin and IntarpnMn. 
uaing Jovaocka aamo ma *> **<* B >mfc aa * ia* and rwora Raya/m* ot r*o Ca*** W * Hatordarii jMarantf Stiffatatoat C IB 
and Aeon* Data Racctferi. tt»a« Printm 'NEC pe-BOZia, Star DPBAOanct CPBOi and lot* <rf naw gama* aoJnaaj* land 
*"■ «» attangad CMCUU. OftlfH lor nanum Piu» a maw of Ota nai* Jkcnm Eiac H on and n a m o< out naw maoaiivw 
lor Etacttoft idai caaad OMMT PVw a* our uauat laatu-a* Ma Nana and T«a, Pc*tb*« and a >w, BVavlaaaar 

STOPPflffal 

BtfBuG naa naooT>aiad a daw with ACOhM o»w ttta (•«*« 1 2 QP[ RATING sVSTIM ROM BCE.BUQ iwnbn hi 

affand lha MOM at around haM ooca Saa BEEBUQ Fab l«wa for data** 

SOFTWARE DETAILS 

BEEBUGSOFT BEEtUG SOFTWARE UBJRARV 

oflati rrtambam a ar°ww»a '*nn* at w r man Irom O W par r aa m ta 1 SlarHaijSlO ? Meoniandat I t«ft > 3C f*ouorns and 

D»aaa«l33KI J S^apa Matrh ' 1 Bk ' Mlrtdbindar rl«i 4 Maa*c Eat (32K I 5 Cyton Anac* 432K) 6 Aitro Tracfcar i]Wl 

VdMa* 1 D iMarr lH ar Itftkl Ranjarma n*At( M>» Tan E«| lOkl Ape«cai>oni l SuparpkH ifiKI 2 Matt^anUt' 

Magatma programa no* avMhaMa wi ri.imtiDmimi»oitrJW"H V*i If p-p - ■♦* April May iaa%i«4rvr utmii 

13% DISCOUNT TO MtMUJEflS Oh THE EkCEllENT WORlXMK wOBO MlOCtSSlhG PACK Afli 
THIS REPRESENTS A SAVING Of OVER It 00 



S«i.il I ' 00 ' 



SAf tor San 



» ona va#r d*h* luioial'tOO M<ddi# Eatt ill «. Aanattcn b> Africa f7t « at-w f,tnrn«i«* f/J dC 
Mikr rtitgiM la KtlUC Pipi t Ua Wi.'di ,»,.rrt H.i LWUlJn lWHTTt 
Fur ad-ianal .natarial mamfl in Th»»dj| U r AffffyO J»o B«t W s , &&*«* t*mtt* 4| r ,'JH 




Our Action 6 Gaines 



FREE *ub 

every copy of BLOWTORCH 9 t5.9> !! 
^t}ffu CiViSimsS from TOUCHSTONE 
61 Hlghfield Rd, Saxilby, Lincoln, 



SPECTROGRAPHIC 

{for Sinclair Spectrum 48k) 
' A complete graphics toolkit. . very easy to use. , 

documentation dear and concise ' 

(Personal Computer Worki} 
For Teachers For Games Enthusiasts For Angsts For Everyone* 
Exploits the Spectrum s superb graphics potential to the full: 

• 1 1 graphics procedures 

• Hi- and lo-res sketch pads 

• 8 sizes of text 

• a mmt-text editor 

• cdour WASH and PAINT 

• create your own UDG characters 

• SAVE dtspiays on tape or PRINT on ZX Pnnter 

• RELOAD displays mlo your own progranris 

send £6.90 for cassette and manual 
'graphics software for ZX81 also available* 

Stnd&t* tofouf M m Ct [WW . <Ma»lcs ■yap'wrj. a*x) v.:*^i!i*)C SO*h*we' 
Fti«Tiytlfl^)«hiauayBI-*e TfaQg enqtanes M B H H Jim fl 



Dept . 36 Femwood. Marpte Bridge 
Stockport. Cheshke, SK6 58e England. 




72 VOUR COMPUTER DECEMBER 19B3 



: '.J* 



**\ 



METAG A LACTIC LLAMAS BATTLE AT 
THI EOOE OF TIMC 

* i*U and ongrnai gam, ha ww *mwtmrma VIC Chair* 
and cotouftuj a* good unti and 4 unqu* awn* a<*on _. 
■arwgn. tm niimw » *m tw mtmi memo imm 3WVC 
dam* «nr» tw fwodurton at (iPCfll*** h r**hr * yaar 
*op ffj« 



*1aseh 

IjpananeaL 

(JfmlPW. "O 



I jpananea L aaar Zona an uOart, KW tctatjr 
QPatpWL "auaaiuHU tt VaMu gam* dawgn 



■CAftATK* at OHM long hour* of 

pracBo* yqu cortrgl tw Inn trap* w that fiay 
MWtam h a HMdh co oparatv* laarrf Faal 
tip ra« PCWtn an you tong* to? fta atocfro 
buton and BLAST 



> I' * tf j XI i h .1 W ki 



BLAST Ham* «*> ** *d* tf 



ar*j\rtC-*)W 




' -^ 



^ * 



Vf* 



>* h*tqr hu latum Gndamna* rh» game 
*aopa<j t>a*aBati chart* m USA and U«T ar 
oaaiad an ataaaoint aGOu** 
Cn jph lca f y auparb il waferm mu*pu> KfHU Mi 

akan» and aRaca wivh inyaarry Euruaa* 



ttadung, oourtdwavtianc phase and pfuca wm* 
OHM 



aoumpanad 6» f oadM a wnn 

■K dBpantam ntnuaad 

* until tor Cemwddhi 64 C7.M 

•fld V»C?0 Eft 



HOVIR BOVVER 

A WMy ongmai arcadt gam* tor CM Matuflftg ouklandng graohm 
v.jno tat* craatod By a uiHiijiial Pujnc VAfard Oonton Ehrnrvt 



ATTACK of the MUTANT CAMELS 
Plana! aarti rtadda ydi/ MfialU aaana hut mrt oanatt 

IB rtMatt OJrlMa) torn normally ha rrw li n 
90 toot high. BWhMtum ihafclad Uaar-apamg daaft c*mc*i" 
Can you 

awoa ta pt to waa fct n and darrtoy »» r aan u t t baton* Hf ****** 
*t# IHADU iaongr«*f V«j mull *r*aUand Mtwng ItW at* *ftd 



features auoaro Kroang, acanrw 1 ? pMyar actum and 

urti a H atM afimon f May Kb garnt and you 1 navar t* at*r tot 

MX a MO again twMul gating an 4cny MOOJr Msar' Atvhmnt 

HI t adDB) 

AratAfeNNf 

Cornrnadi > t ft4 [7 SO 









. 





, 



utelahdng granhEa and • 
Id GoriKMBannat has 
bofrowad hit ra^ghbCwT ■ 
Air Ud laammtHM Mow 
your way iwpugti aa 
many of tw 1a laama aa , 
you Can bahirt tw 
tiuaumg majnou 
inavajhi mowar Bat 
your dog ana) vw *t 

rmtft»aui to najp yuu out 
at tghlapab andddnl 
annoy lw gaidanar Try 
not to plough trough tw 
naal iowia* bvdE Op 
fc*W youf nu mm ' 

t7.50 



• ABDUCTOR 

VM aatfaftQ aaan rurdaa bafDn) 
ihty 'am you and abduci fv«i 
humane*)? Sww* r* aaaau" 1.> 
an) Brtxnjn and |«u I gM an 
•»*a ataga on your ipaowrBj) wah 
doutaa foaou*w> *i iihm 
uMtnandad \rtC; Ackun j» DC 




All Order* add 

SOp pontage and packing 



r"^^ 



I fLa, kut> aroada <a<aaly 
on *■> ufWupanuad VIC' 
Snoot down tw aaratianM 
DBQiO$ nmcang tw gnd 
Bawara id ti* poda and f appurm' 

it* aw^ttim itpaa4 aound and 

graphKagnM 
— ma bard 

I a v a a i hi f to ■ainpandad vtC 
lab* to* wtC-JB «O0 

OomnuduTfttM tSOO 
'l aOuVBut) tliA 



AWESOME OAfVtee aC3FT\AIaVaE 



49 MOUNT PLEASANT. 

TAOLEY, HANTS, RG26 68N 

TELEPHONE TADLEV (07356 447S 

LLAMA SOFT OAMf S NOW IN BOOTS. 
I ASM tb AND UANT OtMt.U HI TAtLtHS 



/A 



A Staffing with i, add one 
letter to form * new word, 
thro a i mther then another 
untf you hevO lotmtvt 
one of (Aw rune letter 
word* Onfy one a 
correct Which ri 
the (tmi word* 

' 'ho. 



B Which shape % 
mmmg* * • ■ 

C How many 
different erqtm/rvt 
rmmben ten you pot 
on the dopfey of 
your eakuietot. mmg 
the ley* r to 9. movtng 
toed/eer- 

hohiontmiy or \rerticaey 
end without mtng the 
tame cftpf twice f> 
'usmtm > h ,t 64 80or 
tl?> 

D The tint tagrt *» t ha 
coded message n mssing 
W*m should it be? is n 9. 8 or ?> 
} 7. 69.82, 87.89. 32 < 
2 82. 7 3. 8 3 84, 

£ What* nett? is it K » 19' 
SAf !4 

F tn the photograph .11 f. whet .1 
in f ether Christmas i hand? Is it 
! A nwcm-fHopPY dec ? Micro 
dtnr* cassette 3 ftOM cartridge 

Q Thesm 
one at t>ia*e 
Me Vt'SfkH 
Mot* mart, 

■•-►tvV what 

mi bofon 
roumtthe 
time* tut 70. 
25 or 30 
mow 

H Go through the gnd 

tnivtng ivw !</('•"■ Ufl 

down, left or nght. never 

passing through cods with the 

lame oumbet 

then twice V 

toon do youjsafs through 

ontf once? fil [3 BJ 

1 Youi Compuief toff 
wrth a> number of «*#»■• 
brand names m the home 
computer world are hidden ttt 
thts tput So mf j number of 
hardware and software 
components Which ere their 
morr 

Mont band name* fouai 
number* More c ompo nefift 
J the Your Conwtw Grmmkrt 
^#J it'ut* egem What *» 
mrssmg at the end of Mne 6 of 
the program at J? ft it 9. 8 or 4 
t LETN tO 

2 DtrV AStN. 10) 
J MR A } TQM INPUT 

Ait A) NEXT A 

8 QlET N N 1 

5 FOR 4 t TON 

6 fFAftAf AHA 

v GO TO? 
?tfT8* ttETWt Ai 

1 AUAi'AHA* nifT 
AHA 
8 NEXT A 

' THEN GOTO 40 



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in the 

right 
order. 



MERODO 


M 


M 


C H 1 P S 


SIDELA 


N 


A 


D V A N C E 


PICCTB 


T 


C 


TYONAT 


E S N R B U 


P 


A 


TONIPNY 


CLiCOM 


P 


1 


LERRRB 


T X P L E 


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M 


U P A OG 


R AM P N A 


R 


F 


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U A T A R 


1 


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MCMNOG 


A 


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D 1 S C 1 V 



Starting at the top of 

the Christmas Tree Maze 

with question A, answer 

each question following 

the route through the 

maze indicated by each 

answer, until you have solved 

all the problems. When you 

have finished all you need to 

do is write the sequence you 

used on the card opposite, for 

instance A, 8, C f D, E, F, G, 

H, I, J if you thought that was 

correct. Then complete the 

tie-breaker in 12 words or fewer. 



74 YOUR COMPUTE R. DECEMBER 1383 



PRIZES 

£1,200 
ADVANCE 
MODEL B 

Two 320K disc drives are 
included with this 16-bit 
microcomputer, which has 
a 40K ROM and 16 
graphics colours. 
Compatible with the IBM 
PC, interfaces include 
cassette port, light-pen, 
joystick, Centronics, 
RS-232. 




128K ADVANCE A 

The £405 little brother to the 

Advance B, without its disc drive. It still 
has full screen handling facilities. 




■ i in 



4# 



TWO WEEKENDS 



Practical instructions, projects 
and games. Anchor Hotels. 0252-517517. 



ACTIVISION 
GAMES AND 
ATARI VCS 
CONSOLES 

Two sets of three 
Activision games 
plus two Atari VCS 
consoles. 

10 HAND- 
HELD CGL 
GAMES 

The action is 

played on two 

screens which fold 

together to form a 

case. A quartz 

watch and alarm function are included 

with Mario Brothers and Donkey Kong II. 

f%$ 10 YC BINDERS 




YOUR COMPUTER. OECEMBER 19S3 75 



your arms. 



EXTRACTING THE BINARY 

Mere is an interesting one foi all Spectrum and fake-Spectrum 
$f owners Now, I am no ww»rd with electronics or computers, 
but I decided to build a synthesiser then produced its notes by 
binary code. Great eh? Well after two months of oscillators, 
shapcrs, fillers, equalisers, and sample hold t finally got the thing 
going. Now for the easy parti 

I'll write off to the nice Sinclair Research and find out what 
Logical nn's jnd ofl*i come out the back of ihe mighty rrwhinr 
Well three weeks later i w»s mil playing synth by the boring old 
method of fingers instead of ins, outs etc. 

Never been one to shy away from the Buzhy I rang Sinclair and 
spent five minutes chatting to the telephonist who assured me ihat 
the technical dept did not reply by post and I had better speak to a 
technician. Ring back between J 
and 4 (mi 

5.30pm: "Hello, 1 phoned - 
earlier about some i ethnical 
information." 

"Oh vest I'll just put you 
through." Healthy pause "Oh!" 

"Good afternoon, (ethnical 
department, can I help?" 

"Oh yes please. Can you icll me 
if the binary code output from the 
output port is series or parallel?" 

"Br. I don't really know. Have 
yiHi not got any sheets or technical 
book* on this?" 

"Br, I dan'l really know. Is there 
anyone cist slightly more technical then 

I r Nut really were in a bit of a mess really I don't really 
know " 

"Really. You don't know a lot do your?" "Erf not really ," 

"Can you connect me back to your switchboard pleased" 

"Hello! Switchboard here." 

"Ob hello! can you give me the phone number of your head 
office please? Your technician doesn't seem to know a lot, maybe 
someone there who know* more" — delay. 

"I'm sorry 1 don't have the phone number but this is the 
address. Oh by the way the letter you sent will be replied to by our 
technician." 

Well nott I rang head office and was partially helped by a nice 
young lady with a charming accent who, after phoning around, 
assured me the code went out in parallel — it's a siari anyway — 
but she couldn't help as regards what went out of each pm 
connection. 

Maybe you could suggest someone who would know what and 
how these binary get out of the back of our beloved Spectrum 

P< R, Robinson, 

Nuneaton, 

WatwkAikin. 




HARTNELL SLAM 

Mhticc its early days, your magazine 
jS has risen from poor quality to the 
very best, both in content and value 
for money. You publish more, and 
better, machine-code games than a 
certain games- only magazine which 
only produces poor Basic games 
You cater for the game player and 
beginner alike, but one imali 
alteration has yet to be made. 

Many people have criticised your 
Rcsponic Frame for inaccuracy or 
hemp uninformed Tim HartnelTf 
hooks n>ntam many errors and the 
older hooks are filled with, 
unnecessary pictures) Many times, 
in Krs|ni[iM' Frame he has answered 
quoiions wronuh Of nol even 
answered the uuesiion he was jsked 

In i he (Viober issue he replied to 
Mr Hsllam, "Unfortunately there is 



no way this — disabling the 
Spectrum Break key — can be done 
in Banc". Absolute rubbish! Having 
copied WH Smith*!. Specitum demo 
while they were not looking, I 
discovered a method which is in fact 
obvious! 

The method of Break proofing is 
as follows: A* the firsr line of your 
program, have the following: 
10 LET VI » PEEK. 23813 2 
POKE 23* 1 3 VI- 

Since this is sometimes restored by 
For . . . Ken loops, Gotos and 
Gosubs the Poke 23613, VI may 
need lo be repeated sometimes 
within the program. This can be 
determined by enperimeni. This 
works by dropping the error stack 
pointer, causing the computer to 
ignore any errors. This may lead re a 
crash if the program is not lull'. 
debugged before mitalling the Poke. 



Also, Tim Hartnell gave a poor 
reply to D G firitton about tape 
recorders. He said thai expensive 
tape recorders are good for high- 
quality Spectrum recordings, 
Expensive tape recorder* have filters 
which often regard computer signals 
as noise and actually degrade them 

Thus, cheap recorders are best, 
My recorder is called a Comic, 
similar in appearance Id Ferguson, 
bui without pause control. It loads 
tapes, no matter how bad, make the 
most reliable recordings around and 
has tone control and tape counter at 
£19,91 

It is also available as Eurosomc or 
Lloytron, among other names, but 
all the same model This is the best 
possible 1 have seen on the 
Spectrum, and belter than a friend's 
Sms 

So much Cca anpmihpc modcls- 
Thv example* 1 have given .ire imhi 
|usr one issue. Many mistakes are 
nude m kot about ail issue*, and u is 
k suite- lhi* ts i he only (law in 
i lapa/mc apart from printing 
nwnv listings i.hi small, bui mvi 
rcjdjblv 

In the October issue. I might add, 
Tim Hartnell did not answer what 
was asked on Vic memory by M 
l-inih, and was even uncertain it 
Mew allVslrd j l vi lain Vk system 
variable when replying to G Ashion 

1 would suggest that a panel of 
experts on each machine be used for 
replies instead. Response Frame is 
your main weakness. 

Juaitt Ktrry t 

LOADED VIC 

/Id like to know if my other 
Vn,v20 user* have experienced 
any problems wiih using the Load 
CMnmtnd within a Basic program 
My ex pe r k t ne e is ihai when Load is 
used in a program, only the first pan 
of the next program i> successfully 
entercd tnlo memory — using a tape 
recorder js tl>c stiinige device. 

]l" i his problem i» universal, and 
not some fault of my particulai 
computet, J olTer (he following uas 



■ around the problem 

' The screen is tirsi tormatied with 
printed Load and Run commands, in 
white, on whnc so ihe user is 
unaware of the problem Then live 
keyboard bull'ei ts gjrai two carriage 
returns — auii 13 dectmal — before 
terminating from program control 
The effect is i valid Ijoad and Run 
command automatically executed by 

ihe cystefn aofiwtn 

996 POKE 196 3 POKE 631.13 

POKE 633.13 POKE 36879.26 
999 PRlNT'lrii lv J nsHMw.-hitpi(3rtowni 
NEWl 3downlLOAOl 3dowi I 
lOAE>(4d(MMniRuMi3<kwMii 
nUMlhomelltilLwl" 
The instruction* in bracket •. ate 
cursor control function* ind shimld 
be self explanatory J oad and Run 
mu*il be typed twice to allow foe ihe 
possibility lhai live I'tav hull on can 
lie engaged m disengaged. 
. I 

iitmtttutnturf, 

TV SPECTRUM 

/recently bought art Amstrad 
polouj IV jnd found lhai my 
Spectrum would not produce any 
colouf on n lUvmg read in 
magazine*' Ukc jfoon advice on how 
(0 cure the problem hy lifting oil ihe 
(I'Ui and having a iwitklie with ihe 
potcntionicieis inside, I did so. 

1 1 cured (he colour problem, but 
carefully lifting oil the case had 
factored ihe keyboard ribbon cable, 

] believe the ribbon cable had 
bcitinie brill It yulh age. p-jtssiblv due 
lO ihe excessive heal generated 
inside i he case of ihe H.umpuier when 
used lor any length of time- 1 1 is 

known lhai twai i dwatly affects 
pUstKs in i his way esen thi«ugh thv 
tcnipcralure is not great enough K* 
mcll n 

\ow tor i he Lrun L hei f Since I 
can mil hick I he fail that I have had 
ihe hip off ni\ computer. I have 
invalidated ihe guarantee and so 
must pa> Sin, bit * minimum charge 
«f 1 10 i ci have ti repaired. 

Please can you prinl a warning Hi 
all SpCitrgrn users inn to lift ofTlhe 
n'ver ot their machines if ihev have 



NO COMMODORE COMPATIBILITY 

/have been following your magazine every month since I 
bought my Vic -20 last August A leu months later Commodore 
Hustness Machines had introduced its new mode, Commodore 64. 
With this improvement 1 am very disappointed that Commodore 
M could ruu run \'ic-2(J soli ware because a ditferent system had 

been used- 

Iximpare other compuicrs such as ihe Apple II and Apple II ♦ 
uid Apple 1 1 A, HB(. Model A and Modd H. Atari 400 and m) tor 
example, In these, software Is compatible. Furthermore, Atari 

aded lis l&K micro to 1SK without any extra charge- and the 
difference in price between a I6K and ■tSK Spectrum it small- 
Hou about Vio-30 10 (Commodore 64? 

Another probtem I would like lo point oul is thai of method of 
payment for buyers outside the l' K. — whether I'usial Orders or 
Rank cheques are acceptable I could gel software from my local 
authorised dealer, but it would take weeks or months lo pet ihe 
latest soft ware shown in your advertisements, 

r.ducjtumal software seems thin on the ground. Why? It would 
be nice, for example, if Commodore could introduce enginecring- 
tartguagc software. 

4&JW Jabhir US. Shtgapon. 



76 VOUfiCOMPUTEH DECEMBER 19B3 



EDITORIAL 



had them lor write uenc. On j 
brighicT note i hough, I have been 
inlo V'H Smith's jnd bough) an 
tjsue 3 Spectrum which give* 
excellent cokmr or my Armirsd TV 
jnd still work* well with ah my 
csiensivc existing jofiwjfe wtth the 
uw excepiion of DK'Tronii;* J.igrif, 
Pen. 

Incidentally, thu wss typed op the 
new Rroiher RP-22 lypwriierf 
pritncr which [aim full A-l tixe 
reaper, works off four torch batteries 
can uic plain paper or thermal 
paper, ha& its own RS-232C 
inrcrfacc and ai £170 inc. VAT ntuiT 
he one or the he*t buys around 

M ft (Vftcti, 
Ltw uiom, 

PLAY THE GAME 

MMavmg bought ■ 48 K Spectrum il 
fj roojr. ?mly a week to reatwe I wsa 
not mterctrcd in Rimci. 1 did vifll 
w UK the computer in my business 
though. Sinclair's Small Bmirics* 
Account! seemed the answer. It took 
five weeks to arrive and seemed |usl 
what t needed but within hour* il 
failed and was returned. 

After fruitless letters over another 
four weeks Sinclair offered me my 
money btci — ttill not received at 
rime of writing, [a there no-one that 
offer? the small business man a 
program that makes the Spectrum 
wnnh owning? 

G, J. Abn\hams t 

BiTcMngton. 

Kent, 



There are several bkmdtn to be 
corrected m the hJommoer nave 
The first and most grievous one is 
that two byte* an missing at the 
end of each One m the One 
Invaders he* dvmp Our apofoQie* 
to that* who A*W found this Out 
the hard way Sand us your 
sddnu and imp M#jfmf you a 
copy ot the correct kiting. 

The he* kjadw h* the Scram Si 
program works pertectty rf you 
Hart oft by typing GOTO 7000 
Yt<u mphr town** kke to add 
•tie 50 whxh math GOTO JQ» ■ 

f SrOwn'S program Mat*, 
«n Software frit is wrongty b4t*6 
tot the Dragon tt tuns instead on 
the Spectrum 

The kiting tor Andrew Copies 
Capmao program m in* October 
/$$u* if correct A number of 
people, however, nave complained 
that when they run the program >r 
stops mth an error massage at ine 
*f Almost certainly fhrt rndnates 
that Jhey have made a mistake m 
keying m the Gate statements m 
knas lWto2*l 

line *Q reads m the Data 
'mds that the Data statement's 
one) character too short Of too 
long, or contains a tetter putsrd* 
the rang* A to F it wdt throw the 
message "nonsense m SasK" or 
"variable not found" 

At tots point type m directiy 
from the keyboard, PRINT AS 
this wM aeow ytui to track down 
the fau/rv Data statement At 
should contain the string of hex 
numbers which t found between 
the Quotation marks m each of the 
Dan statements 



Vi'wi I- vol i-\)tmiv an Indian summer of 
computer price cuts, manufacturers were already 
preparing for a bleak winter. They knew thai some 
of their number would run nuke it to the shelter of 
the Christmas consumer spending spree. 

With low micro prices paring profit margins 
down to a lean minimum — and beyond — it seems 
inevitable in relrospect thai there would be 
casualties. A few companies have gone out of 
business* altogether, others have decided to pull out 
of home computing before their tones become 
intolerable. 

The move by one of the oldest names in the 
market, Texas tnsirunieni. it> abandon us home- 
computer opera! ton came jnil two weeks after the 
U.S. toy manufacturer Mattel's decision to hand 
over distribution of the Aquarius to ihr builder of 
the micro, Radolin. Thai ends both companiev 
involvement in ihc production of fully -fledged 
home computers. 

Atari, the company that offered Texas such stiff 
competition on both sides or the Atlantic, has also 
been bloodied by heavy losses. It was $180 million 
in the red on the last three months' i ratling 

Hopes oN return to beticr fortunes arc pinned on 
Atari's new XI- series — the first new machines 
from the company for four years. 

In a market where there is major price warfare, 
you have to be big to sustain losses, and ideally 
have the support of a wide product range. Atari, 
Texas and Mattel are large concerns with 
considerable financial muscle, Bui two British 
producers, Dragon Data and Qric Products, font 
both been obliged rcccnlly to look outside for new 
investment to help ihem over liquidity problems. 



Incident illy, Dragon's founder Mettoy, which had 
gradually sold ufTall hui a 1 5.5 percent stake in the 
computer company, recently went into 
receivership. 

Dragon created most of its targe user base by 
having machines available in volume for last year's 
Vuletide rush. It could only pull off a similar coup 
this year if Electrons, CBM-64s and Atari 600XL.* 
are not around in sufficient numbers to satisfy 
demand. 

Computer companies that fell by the wayside are 
Grundy Business Systems — the NewBrain's 
manufacturer — and now Jupiter Can I ah which 
created the first and only Kuth- based home micro. 
Even a price-cutter in ihe business portable market, 
Osborne Computer, has had to seek protection 
from its creditors under the VS. Bankrupt 
Code's section 1 1. 

Bui how is it possible for a market as ostensibly 
booming as home computing to harbour so many 
financial problems? [t is exactly because of ihc 
rapid expansion thai firms have great difficulties m 
estimating growth accurately, and planning for it 
accordingly. 

An apparently minor miscalculanon at the 
bottom of an exponential growth curve can lead to a 
financially crippling error at the lop, Add to thai 
problem a savage campaign of price cuts and few 
companies can count themselves safe. The moment 
of truth will come for more manufacturers when we 
reach the 1984 side of Christmas. Until then, 
computer enthusiasts may sympathise with ihe 
plight ol ihe companies, but they will be drinking 
festive I oasis with the money the price war has 
saved them. 



How to write for Your Computer 

We called this magazine Your Computer precisely because we welcome your 
views, tips and hints and even your criticism of machines and software in general. 
If you would like to see your name in print, whether on a Software File program or 
a full-blooded article, here is how to go about it. Ideally, all articles should be 
tvped double-spaced on one side only of uniform sheets of paper. If listings can 
be dumped directly from a printer - you can always use a friend's or user group's 
this minimises the risk of error. In a perfect world a cassette would 
accompany the article. That considerably speeds up the checking process. Not 
only do you get to air your own discoveries and opinions, but we will even pay 
you for the privilege. We pay f 35 per published page - that's as it appears in the 

magazine and includes illustrations. 
Why not give it a try? You have nothing to lose but your postage. 



ABC 



Editor 

TOBY WOLPE 

Assistant Editor 
MEIRION JONES 

Staff Writer 
SIMON BEESLEY 
Production Editor 
IAN VALLELY 

Sub editor 

PAUL BOND 

Editorial Secretary 

LYNN DAWSON 

Editorial: 01-661 3144 

Subscriptions: U.K. CI0.50 for 12 issues 

FlhlMJ m dml Qrfttm For IfH (JT0C**Wr» 

BuamtH Pirns i*rt§rn*t»nii Ltd. Ourtw* Hovh, Ttw 
QuadWt, Svtro. Suray SM3 MS T« 01 «1 3U0 
Tatot grprrm 8S&&t BIPRf SG 'SSN QJ6J«B6 
Pnrttad fry Rratmiji t^mm Ltd, Wmrt*r»W* Kpnt wd 
Ti lia til bv hmo Lid. London EC I 



Advertisement Manager 
SHOBHAN GAJJAR 01 661 3127 

Advertisement Executives 
NIGEL BORREU 01-661 3660 
JULIAN BIOLAKE 01-661 8458 

Northern Office 

RON SOUTH ALL 061-872 8861 

Advertisement Secretary 
JEANETTEMACKRELL 

Classified 

CLAIRE NOTLEY 01-661 3036 

Publishing Director 
CHRIS HIPWELL 

Your Computer, Quadrant House, The 
Quadrant, Sutton. Surrey SM2 5AS 

® Business Press International Ltd 1983 



VQUR COMPUTER DECEMBER 1903 7? 



NEWS 



How the Electron will 
grow: expansion 
boxes 



wiiiiuii mrntMrriMO from the 
ntam positive features ot Acorn's 
ik* baby, ii doe* U*.k i he FLS-iH. 
UM and printer pom of its hip 
brother, ihe BBC Mum \Xhilc it is 
no Mviel (hull the Wcc'iron IhNM a 
built-in ivrutector for the addition ol 
hjtJwiii; e span* ton unit*, the first 

pMUll Ol sUih J Llllll IS fcpiudUtld 

11 t* important to emphasise 
■ in* i* just j proton pc 
l i, h hardware expansion unit will 
turn i certain number of lu; 
built in, lo allow uv > lomae 

their RleCtroa fat particular 
purpose* I Vfirmelv no the drawing 
Kurd u j K*\ scmlaintng ehm tusl a 
disc interface, but a complete dtK 
and drive uruis u well 
favoura ■ proper 1 to \ * inch 

diameter disc bui is Mill deciding 

orapanies like Sony, 

W iik ItcMv-r. Unjoin and others. It 

will plump lor a manufacturer 

product ls likely u> become all 

iiulinttv MjnJjrJ Ii is nm Ji-ai il 

on* oi ihc tKpwwhin botcee s*iii 

contain I hi' timing' R> 
primer and user interface* el the 
!<Bt Mil to, although j bus 
containing jn A/D convene*, 
I jnJ interface fot ROM 
tanridges was nnc of the p* 
.oniiguratiom under conssskration 

l"he lartridgc sticking nut ol the 
K«v mi the photograph contain* i»i* 
I6K ROM* which would be able lo 
ptovidc ihe l-kvtron with, tor 
maiafHX, Vara - the RRC\ word 
processor, or ptograttinimg 
■fea lik- BCPI or perhaps 
hartR Another feature not pfescm 
on the Rkctraa is the RRt ?t Mode 7 
Ttuf r&it-iuTw chx* (jHtfuiv w>*t* I porta- not **gM program/mot* "Vvtt 
j/tt &gM ptvgrmvwisl* outputs T*m batten, -powfttt ctock promkn th* 
ompiirtr with mofirh, tf*y. Out, hours, mnutws and seconds So you coukt. 

for etmrpk' VS* YOtf S*™c4pr m$ an ctectrpntc tftpy. ttw Cfoe* VWWW kt*p 
ttmr ,\n4f ihe ZX 91 or Stfwefrun'J *w switched off Tbm docks aiw 



• ' ?Vi>v if l n.-» .'S&.'lt* 



Teletext. Tim, together with the 
Ijvk of an RsV-4JJ hmdcrx 
nctworfcjiqt. Noxtthclew, t hot 
Lituld be produced which uoulJ «id 

thtM- ll4lllH-k 

Ii vaarocoiti) ^ijimeJthjt MMMH 
Ektitnmi had heen ordered by 
British Tekram for j new mediij) 
nat HWri j t «.»,^>vJ ihrtKieh Prewel 
LjllrJ (he Chjm Yhi\ nmwork 
lhjI>Icn JiKtufs and. nunes to get 
thtou^li jdminiiiriiiive drudgery 
qtlktl] urivnvn. »ilh ihe GeOtraJ 
Lompulcr at (he hmpiul priuidin^- 
prompts In GKt, it teem* unlikelv 
thiii the orJei i> lor jn Hkitron per 
>,-. or eicn 101 *n t*kvtfon plu* 4 
iTMgu Kix, bul ralher lot J JedKJled 
tcrnlinjl unnB KLcCt'041 mnv 
poiteni* S'cvenhelrw-. lhi» i ndie.it es 
that the potential ii there 

The potential is alto there Am the 
TuN. - jlthouch, of iouiw. we 
hjie ici to wr it ollkuilv lor the 
1 1 BC Madf, lei j lone ihe Rlctiron, 

However, Acorn hun «u^\e»iiiltv 
used /-HtS and hW2* » Mreond 




An EiectTQn wfft drtftrtftc* 

prectmem w>ih iht Hlewtron, vo it 
look* like the Tube will be in i hox 
Thuif* arc Mill very much Ji ihe 
prototype »[jcc tor Ihe expansion 
beat; lor certain appin.atioi» n louln 
^though an intermedial c expansion 



hos may be neceenrj 10 abviite 
teedKivk problem* — ihe 
internwduie bo* would have to 
supplant ihc KteuturTt own power 
supph a* well ** r*w*eriTtj: the new 
peripheral 



Companies may come and go but 
the microcomputer show goes on 



Fxrr Tt-vvs Imtrumcnta, Mattel and 
Juptler CjMUab slape left; enter IBM 
from wines stape nphi 'Ihe home- 
coMputittf ttorjf-ltae is now 

mvredtbly koinpltvJicJ. ihe only 
ihinp stopping ii Irom being J fafCt 
is thai i! b not Turn: 

VTnh Tdtat Irturiunenti' d«. 
lo put! oui of the homc'vompuirr 
uurket, new machines like ihe 




TVWt jie beine written out of the 
vtipl before they have even put tn 
id appear a rt^e 

tium toy-maker Mattel has ifan 
vonvluJcJ ihiit now i% the time to 
Mop selling sompuler hardware, and 
earl) ia I9W n will be handing oww 
disinKiiion ol the t'Stl As(uarius to 
R a Jo fin Blectrook* I'K.. ihe 
madune'a manulaeturet. 

Big Blue's 
little baby 

Ii i mii u ■* mi ns suiis-M in the 
perwnel •omputer markri, IBM has 
desuled to make its preierke fell iti 
the home The VS. ftrint broke ihe 
shell of Kcrecy Mirroitndmjt ii> 
hoiue-conipuiei project t» reveal not 
i he Peanut, Nil ihe I't it 

Apart from ihe tiovdiy ul the 
PCjr't tordkvs keyboard whish use* 
an infrared Mjmal to eonununtcate 
with the separate SllKH-Kised. lA-bu 
Lompuiii Horn t*ty,thh 

eokaa raicre Kikb. few mrprj 

1 1 s'omev m I wo version*' a SWU 
htK lor the ba»u mm, or J 1.269 KN 
iJ.HK and diskette drive — hardly 
ihe sonjif pners that will put it in 
ihe mainstream ■>! British home 
ininpuiing. 

In a in »K I KM ha* no plans to 

bring irie PC.tr out in the C K set. 

hut when ii doe* fan san especi the 

| sheapet version lo sell for between 

£W and £60O\ 



l"hc £90 Ace* the only t'onh-hnnl 
home micro, Is now out of 

production. A meeting ol ir editor s 
of the :Wc'i manufacturer, Jupitet 
t-iTiTab, ha* been calk- J 

Rut the king-expected twivi to the 
plot is thai IBM has launched iiiell 
into Bic hstine-nimpuicf frer-fofall 
with the CSOO^m PCjr U'nh thai 
MCI o| price. Bit Blue is defaij 
gtHivg lor ihe nioie stable end 
market 

I eat in 14?*) the first company 
to produce a home cotour mi, ro. ihe 
Tt-WH - has devtded lo call it a day 
after sustaining man* fosses fat Hal 
home computer operation 
A, wording Mi JcttM spokesman 'Ik 
firm was "loosing money hand OtW 
list in the homes i*mputrr rturkef' 

a fact which aee o unii 
all of Texas' $2 Hi million haaei b 
the last Mk monrhs 

The chin-making side ol Texas' 
business it "iroitu; ahead sironclv". 
and ihe eompanv has ik> current 
plan* to withdraw us popular Speak 
and Spell range of learning loss 
vX arrant tes on Texas hardware wilt 
be honoured 

F.ven thouRh T1-1W-JA production 
is ceasing, there should he no 
itfcsfiege of programs fur ihe 
moment lire Tekas spokesman say* 
thai there ate "farjee tmeniortes ol 
software, and a bcriiin amounl ol 
new KlUTaiin m (he pipeline". 



78 TOURCOMPU1EH. DECtMBfH T9H3 



NEWS 



Video teach-ins for serious 
programmers and games freaks 



li Gtrrnnatfta bad spread the *uiJ 
about printing in lendfcaf out hand 
written noi« it would have taken ilu 
■mid j [nfii: line M JinJ out ibott 

it* advantages So ihc argument Kocv 
vi Ht should not write books about 
vornpuitng hut instead harness the 
television m.wh HI teach people 
Ideally you could pul the kssortv on 
j ROM ejftridp hui praam ROMi 
do not cany enough memorv Both 
PolyOram and VI 1 Smiths have 
done the ne*i best thing by bringing 
out video* Smith* has produced an 

Floppy cuts 
on the horizon 

Xl\t m ah you can expect in we 
ftoppv disc drives widely jv jiI able in 
high si feel chain* and ai dramatic- 
ally ktwtr prim. One major MURK 
oi din drives, Taiwan, hope* n> 
push in export price below S-ltKi H. 
the lime I hey reach the shops Sere 
I'he Jd he selling lor as low 

\SI1 Smiths alrcads Mock* s v , 

■dt < tinurU drive* lind 1 I 

Hiiachi drives Cot the BBC, micro m 
K> of it* MO branches In ihcse 
store* the normal uimpuin 
department* have been expanded 
into "(hopi with in shop*'*. 

Both drive* have been packaged to 
allow the Liver to "pint in and 1:0 

'rise B tm a pfc te with i:abkf, j 
manual and a formal! mc din A 

atngk I0OK phi (ran Otawot oc»n 

i2"ki while j 1 inch Hitachi drive 
uiih Ihc same capaci ty Cflatt £225. 

lor i i^l ( urujiw als,i seil- 
systcm tor The IVapon although that 
sull not he jiailaHc ai % It Smith) 



awn bund video - 11* Brat-War — 
which i% probably also I he first 
Spectrum 1 union udeo 

(ailed /wAJuWr*mi to Pnframmmg. 
ihc course prcse-nicd by David 
Rcdchli come* in Iwo pans costing 
I.I6.O1 eavh IjcvcI One teaches 
Bask programming, ami contains 
four program* which can be oWn- 
lu-iJiJ Imm ihc video #k an audio 
lapc recorder into sour Sinclair 7.\ 
Specimen More adsanccd pro- 
r ramming i> the topis at* the IjcvcI 
Two i*pe. This (eil* you about 




Tg program f/W Sprclturf} fOy$»& 

•nrettacv, jusi pons, ttw> k*y t» go *ft, 
to a^nens* and 1 mo** ir* xnntick k*t 
Attf kpy tpeafmi f>r tfw parrm 
»Atwii can 6c "to*tf>c<t' t>r the 
Htterttce - fgttt ifitttttom pint fire 

cumpmbto wtft smtcti type joysticks 
such an f^rw 4r«r', Compatnton Pro, 
Staff tghtwr, Wko mtc frntrnphom 
tpaom 27M2 



Hring Uicioft, array handling and 
animalnsn Two programs arc 
included for iranvtcrciKc utio your 
citmputei 

The videos will he on sale at ***> 
Smiths brancties in ihc I' K On a 
ic» eduviional note, t'okittjin 
Video tus produced a 1 r iloirv enlillcd 

tti litaf lt\>m<- IV;. 
Pret«ntcd by ace game* player 
Philip VticwcJL panics E'rom vtablcs 
as Jivcinc il Parker Bnnherv, 
Apollo, tmaeiL, Adiririoa and Atari 
arc f> resented A* the icchniquca jjc 
c»p Lamed, the CdtiK pltyi arc tbown 

The three casseiies cover JjlVereni 
panic* (en dJtTercnt tysltnu. The 
!'iim vitlurnc - cm it led ihc Hc-v: 

R*akei ifktttraiei ctiwlci like 
FrofgtVt Auffotdti Space Invaders. 
Iltd lihoppcf IJiniroand volume 
two deals with more recent jeatnes to 
appear, like FT. 

The third volume ii more 
hardware-oriented, dealing with new 
video jtames systemi — ihc Vearev. 
1 4>lecinisicin and the Ann S.'iii" bui 
it also shows 20 g»me>- 

Viivwcll ha> endorsed I he v'ideo 
approach not because he IceK that 
his potent is! audience cannot read, 
bul because 11 is drilicull to sisualisc- 
rrwit the written word what he is 
trying 10 say: "\s"hcn you see it 
happen on tape* it iv no longer 
theon 



with confidence, 
thanks to your micro 



D rhv wisdom at the lm>t and 
the lolly of the wi*c, ihev *a> 
l-iMili*h or wise, two new programs 
Trom Acorntot't deal with love'* 
yuung dream 

Dating tiame, developed by 
IV Olenn Mi'iKoii ol the Cm 
ol'lamdon's tmiiiuu- .it Pijihilij. 
comes in Tour units The first, the 
Dating Ciame itself, enables you to 
enter data c*n up 10 -tit people and set 
who is compatible with whom ti n 
based on the same aititudiiul testing 
used by big computet daunt 
■tjeot im 

The second hc^tion. Ij.ne Si vie - 

asks you incredibly peraonul 

ifuestmns in find oui whai mn ui 
lover you are Gtodfol or practical, 
terious or playful, cool or 

paSMOtute 

11k third segment, Relationship, 
li^uies out whether you are I 



or a taker, committed or free, 'boss' 
01 riave, ujutei or exenmg 

The final «iiwn, Dating Skill*, fa) 
ItfhthMftedr) aimed ai duensrefing 
if you Jie apprivochmjc the obieir ol 
your affiKUOM in the tsrsl POtalbk 
way, or if you are just plain hiHitKh 
and aot faaUy HKi>mpeicni 

The other pro^unt. I Do. is based 
on the eon tr o wn BEl IV F.yscnck's 
bunk Kwr tiiiiJt w j fljppy 
trtamofft. This fal a bit mote serious 
and » aimed at married coup! 
an eye io u*e b)' matriafjt gr 1 *"— 
councellorv li has *ub-si, 
dealing with kOCMl attitudes, 
personality, marital latiifBCtion, 
feminism and antilemmism. 
maicuhniti and lemininiti and 
sesual ami tides Apparently roatilil 
breakdown cox* the country around 
i\ million per year, to (his is tout 
chance to help wnh the national debt 



I 

T#"s 




mm 


in on 


TC 

Oarrw 


»r 20 

Company MacMna 


aWmtaid 


Computa' BBC 


Aiiacfc 


Mmeapct 


■ - 


Imagine Vk 20 


■An^ch ef 


Liamasoti CSM64 


lh« Moiam 


Camaw 




■Cntiy 


Engteh Atari 


Coptw 


Sorrware 


■Oaav 


inter captor v<t 20 


Kong 




■Oampw 


Oucksitvi zxai 


Gtoopw 




TlgN 


SineU« Spectrum 


StatdMM 




•Right 


S<ntia* i* 9\ 


Simulate* 




■ GoiJiunrw 


r Llamasoh Vc 20 


■Jin P«c 


unimai* Spacirum 


■ Manic 


BugjByt* Spacvum 


Mrtar 




NhfjM 


Satarnanoer Dragon 


Ffght 




■PM 


Bug Byte Specl'om 


■Ring erf 


Wmter SOf I Dragon 


DarloMaa 




■Srxsfifcw 


Acorrwoft BBC 


■Bpaco 


S-scla.r ZXB1 


Randar* 




•3D Grand 

PT11 

■Utita 


DK ironies ZXS1 


PSS Atari 


■Zaikcm 


Dotatoh Alan 


■Z/Oons 


imitgrfie Spaeoum 



Hinged pop-up screen on 
Olivetti's new portable 




Ottvrru* M WporfaMp eomptript 

OUvaiin N»* portaHe contpuicr, 
ihc Ml it is clearly intended to 
compete wnh the Epson HX--0 
I. ike the Elpson 11 is small enough to 
Hi into a briefcase with a base area 
roughly the w/x of an XI sheet ol 
paper but provides a lull vi/e Qweny 
keyboard Its dtstinctive feature is a 
hui fed popup screen which oilers 
eight lines of 4U characters or 
graphics, tn a litjutd crystal dispbv 

At a price which is capO L ' t ed M he 
hetwccit t-ttki jnj fjflrj „ M IU jpp^j) 



nuinK to huvinevv users 

The :ics wnh 5.'K RjVM 

and 32K ROM. As well as the Bask 
interpreter the ROM contains a tew 
cJirnr, a terminal emulator, an 
address book and diari I'he 
m axhln e'l interfaces invlude parallel 
and serial porrv. a cassette pon and* 
socket for a bar L ode reader Olivetti 
u planning 10 tuppon ihe M-10 wnh 
operated four-colour 
priucr/piotiCT and in Kotattk 
coupler 



YOUfl COMPUTER MCEMBtR 19B3 79 



t 




c 



LA 



out of this world 








48K Spectrum Chess II £9.95 

Two years of research and development 
have produced the strongest chess game 
yet. with 999 levels of play 

48 K Spectrum Voice Chess £8.95 

This incredible program talks you through 
your game. It tells you its move, 
recommends a move and contains a range 
of facetious comments The game is based 
on the highly acclaimed ZX Chess II. 

IK ZX Chess 2X81 £2.95 

A fantastic 1K chess game ideal for 
someone who wan ts a quick game 
without watting for loading. 

Non-speaking version Spectrum 
Chess E8.45 



*rf 



>.& 



utf 



Lar 



16K/48K Spectrum Chess Tutor £6,95 

Not only an excelteni companion but a!so 
teaches the absolute beginner 
how to play chess 

ZX Chess II £9.95 

A great game of chess (or your 16K ZX8 1 
or 48 K Spectrum. Seven levels of play 
Analysis and recommended move 

options 

\ ZX Chess I £6.50 

k Very popular machine code program. 

^ with six levels of play and analysis 

A option 




To Artie Computing Lid, Main Street. 
BrartdesDurton. Driffield YQ25 6RG 



MARMMt liww program «■ * oW •"WiVm lo AKTIC COMPUf WT.LTD 4 tr«nioll<i* jnd ccvtrMcmiof I* 

Artie Computing Ltd, 

Mam SlreeL Brandesburton, 

Driffield Y025 8RG 

Cheques and PO.'s made payable to Artie Computing Ltd 

Dealer enquiries welcome Please state whether your 

order is for ZX81 or SPECTRUM 

Access and Barclaycard welcome 



Send S AE. (9 in - 6 in) for FREE catalogue of our wide range of programs 



Please supply 

"Cheque for total amount enclosed C. 
*Access/BarcJaycard No 



Name 



Address, 



'Please delete or complete as applicable. 
Please allow 28 days tor delivery. 



mssewm 




Your Computer reederi w* be 

jU« 10 ute Ibe uouebar m (h» 
am to enlar the Fan fw Sup lee* 
than utuaL Thar* we atao »peoei 
nftn attn rrnvejl anfl adrrMaion 
tickets from British. R*t which C9fl 
•m you raoniy. Fiat DrtC* 
adms**pn i» £2 50 for adurU And 
ft SO for eh e dn an under 16 »tki 
p e m a a na ra .. 

Special inhibition lm* including 
rea tree*) 19 LofKBO el¥f 

admatton to the F a* mm at 
[ * 50 for jfJur'v f7 SO fw chedren 
from anywhere in Gntw London 
dp to f 13 SO (7 00 from 
Bif nwjfum The** price* do not 
include Hit* tr*y»> 10 vvernbiey, 
The eaatett way to get to the 

Fa* by underfjiCrUfid t» by 
Metr ut>C*t*n br* Or Jubilee to 

Wemblev Park t» Baturioo to 
Wvnblny C*ni'*l Rm*h Ran , 
Qrotd Street line ebro mrw to 
VUvrtfy Central and the 83, 92. 
187, 18. 297. ?« and 734 Green 
Line bvw ** 00 n**r the 

Wwr*l#v Co«f«r*net Centre 

By c* Mow won* to* 
W m n b %y atadrum ami then the 
Conference Centre what* you «mN 
find a 5.009 apace car part Tht 
Fan open* each day at 10 OCom 
end dote* ai 6 OOpm * uwpt 

Friday When there ml be l*t* 
moht open tntj t* B 00pm 
■ If you want to wvotd ihe queue 
and txiy youi tickets twiore the tig 
day, you can order them from 
Your Computer Ovistme* Fair 
Advance Tmtein Reed 
Enrnbrtrom, Ttwoy^tyWay. 
Sutton, Suney SMi 400, 
MUeptorw 01 6*3 ECHO Ticket* 
con f7 SO for adults and P 50 for 
chUdran Special party rale* ** 
available on ■equaai Barnambar 
thai appfccationt for the Super 
Saw ticket* mud be ei no Ulei 
ihan Ocerrher 5 




TMAS 



LIST OF 
EXHIBITORS 

CvmiMfly nam* 
* b f Sotrnwt 

A&MCOlicr 

A GF Hardware 

Antoog 

AiF un ao*t 

An* OompvtrriB Ltd 

4SPSofT«a« 

Automata UK Lid 

u aaBw a aftdQrbn 

Bamard Babaru 

IrhjcMhingi Lid 
6ua Byte GA wor* 
Carne* Sdttvie**' 
CDS VI*io System* 
Cheelih Marketing Ltd 
Compuaound 
Compgt**olyf Ltd 
Compute* Add on* 
Compute' 3oofc*i«0t Lid 
C R L 

Computet SumrbOoi* 
CPSoftwerf 
Cnntai Computmp 
Cunyi Mcro Synamt 
twP Corrqanm 
Oaan Etoc1rore» Lid 



Stand 



V3 

m 
i« 

1ST 

i» 

337 
193 

377 

IT* 

V32 

vie 

2H, 

V23 
112 
VIS 
1«3 
vM 
V7 
J13 
3K 
V17 



OllonaUnfwaniryaoohahao 261 

DJLSoftw«a 114 
DKTronica 234 341 
DrnorQwu 231 J43 

DuoSn** 3» 

Em London nocotka w2* 

ECC fhitiicaticnt 1?4 

FJtinSotrwan 219 

Eiieter 5oftwere Supp. *» 'J 1 1 

Fenuey Software t» 

Farrimi tr Deveooon Ltd 120 

F<w EtKcrorpc* 1t5 

FuHk Micro Syntama V34 

OemScrtlWn 306 
Grihame Mtcto AcceatWiea 1S7 

Hl-Solt 111 

MonayfoU Sotrwn* Ltd 220 

iMi, Soft-*ara 217 

literceptw Miero'i M 

tvanfi vis 

Keteood Computm Caea* V6 

Kamptton Bacttonict 123 

Kenama 26* 

Level 4 1» 

Lierrwnoft 287 

LongrnanSoltwarfl lflb 
Look 8oo*a«lln(i 

SanrtcaaLtd 120 

ManadiGamu 296 




Gifts galore 

1 1 1 k\ Nl MBrRSirill be ihc mmc ill 
1 he fjnw ji Out ClhriMmJii Fair Tht 
Hair which rurt« iVum Tb und a y , 
llcvcmner 1 5 10 Sunday, IVccmhcr 
1 s a yent la»i Jijikc in ur i Ik pick 
i»i 1 lie- jnew'i iwflwiic nekstm, vmh 
all rlit Ijii-si iwriputeri anJ add-uns, 

before ChrtunuM A diflcreni 
OUBbcj wilJ S: primed on each 

ijijli^in- <«v|j jnd lucky number* 
will he drjwn cvtrv hour k*n she 
hour Jurint; tbf jltcTTtixin uuion of 
ihe Fan The winneri will rceehrc 
Uitis nl Miiliwjrt jnd jdd-iins — 
pocket tttkulaimi. Sfuxirum Mmmj 

TXHWtCT. Ullil'-. IW-iMlTI* Jtld I4M 

diaries. 



Lots of choice 

\M mi it] 1 Itn vhoicc iTuf* ihc 
ifafM nl" lbe OfM (^iniputcr Feb 
drtitined to appeal juu l»t l.-nr 
Computet fader*. With 10(1 
C < WlpWlk » «hihiiintt everything foe 
I he hiHiK cumpuicr from ^wicks 
j 11 J 1 nefc halls it) ipeev h nymhcuaert 
and printcci the Omni™* Rrif iuw 
hh h}\t riwm for buMne** 
nuihiim Vou can buy Jnd try j 
wide* runpe of pcfiphetaK foi 
nik'to ihjn >"OU <iiuld l'\lt ho|x; Id 
wc in one store. Vou CM we M the 
riviil trjnK^ hir your compulci up 
and liiiimrit! on vleell Ivl'ofe VOtl 
%hiniM: what vmi wum 10 bu] 

LlhiiMniJS 



Master Datntuiom 

ILIKI Ltd 1S2 
McGravHrt* Book Co. 

(UK I Ltd 103 

MCLothqnan V20 

Mabowme Home 180 

Marfcn So*T**t* 211 

M«»odeatar UK, Ltd 264 
MrtrdManaoarram 775 280 

Mifomjna V2 

Vik'oGen 108 

Mmalure Tool Co 258 

NewGeneralioriScrrtweni V30 

OpuaSuppliM 239 
Ode Product! mwrvnionai 

Ltd 272 2B2 

OmnSoftMMn VI 

PM:tur*iqut V18 

PrarrficB Ht*l Infrr^jtortal 238 

Pfifil () PVOThP P'OOuCTl VI 

P S. S 106 



Quddrfva 

fldwd Shepherd 
H (COi Elect romc* Ltd 

RW Sortwwe 



Severn SdtTvnre 

Shard* Softnera 

Savaraofl 

SoftaadhLU 

Sonai 

Sctrwar* fefMSan 

Specladraw 

Stsri Computers 

Stack Computer* 

Surqhirvt PuUbcatsont 

Supanof SetMW* 

Tanaolt 

Th* Sonwar* Firm 

Taneacapf Software 

Uttimati Play f he Game 

Yout Computaf 



227 248 

ne 

IS! 
229 

m 

253 

V40 
250 267 
2B7 
V» 
370 
V3fJ 
31 
294 
20! 
VJB 
2!fl 
172 
296 







. a 



• 





Tat 


•> 


iU 


■J 


1IJ 


" 


rti 


• 


tea 







a 13 «nj 



t*» 
**• 

.*■. 


5 
1 

f 
? 
5 




rtl 



Iff 



YOUft COMPUTER, MCEMBER t9B3 81 



^ "* --^wflp wr ^ 



« t*f*r» » 




VE YOURSELF 
TO DISTRACTION 




WITH A BBC BUGGY 

Trying to determine the limitation* of the BBC Buggy is o 
task which will drive you to distraction. So sit back and 
accept the fact that your GBC Micro computer (Model Bi 



controlled Robot will provide you with hours and hours 
of stimulating entertainment 

This rugged littfe vehicle which has been designed in 
Conjunction with the BBC Computer Literary Programme 
ond featured in the television series 'Making the mast of 
the Micro' is built from on easy to assemble rechertechnh 
construction kit, complete with all necessary cables, 
software and instructions. 






T"* Buggy's software which is based an the 'building 
block principle consists of 12 robust application 
programs and one familiarisation program all of which 
feature full graphics- 
Take a trip into the future without ever leaving your 
- rd - drive a BBC Buggy. 



and familiarisation, 
itch - dtnxt (tmputi'f control, 
Memory Switch - demon -.rrotwtg computer memory 
Rnulfptanncr- od«cTiK*d vvnton of Snatl 
Recorder- route dbpfci, 
Snail - Hirwi route plowing i 
Explore lor wait- mnftprng of boundaries 
Explore 'at ohject- >ovWob|*cly <W>i™'. thop*i,r#turm horn* 
Bar Code Route-planner non-kryboarii 'information input 
Fin Pern Alley - composing music by bar code v 
Won vs Buggy - Fifing Wind', 

Sunseeker MMkmg a li(|Kt ond nttejoMMrna obvlruciicinv 
Line Follower - block or *»hitr> line following 

The BBC Buggy is available from Acorn '81C d 
and other motor outlets. 



m 



Send me the 
BBC Buggy at 

£189.oo 

w VAT. pocimg Wid 



Nome 



Address 



"I 



Cord No 



I enclose cheque/PO or debii my Access account [deMe as necessary] 
Signature 7*9, ^^^y <* =r*- 



Etonowoa <Mv*<*wi> Ud., 4 Onjnw Cmwi, Dw* Hdmh W. Grto**. HondWoflb, Sheffield SU W*0 W; (0742) »*M01 



J 



I could 

do 
that... 



Ir> the piece on sorting and 
searching, we mentioned the 
binary search, This month's 
challenge is to see which 
reader can come up with the 
most efficient program, 
fudged by both speed and 

procjrarn s«e. lo implement 
the binary sort. 

Assume thai you have an 
array with sorted data in it 
already, and iry to make the 
routine as general as possible. 
Also try to expl*n as best you 
can what it i* that you ere 
doing. Thb should help other 
readers lo understand 

Obviously the task set m 
October s 1 could do ti 
failed to stimulate First By tors' 
interest or perhaps, proved 
too difficult 

Not a single entry landed on 
our desks before (he closing 
oate so. no prize and no 
solution 

Let us hope this month's 
poser is less intimidating 

Read Piers L etc bet's 
introduction to sorting first 
and ihen try your hand - 
there « f 15 at stake 




Starting out in home 

computing? First Bytes 

is for you, Just write to 

Your Computer with any hardware or software 

problems, no matter how small or simple. 



Printing to 
the screen 

"There appear to be several 
methods for printing information 
from a program ori to the screen, 
but t do not know what ttmy #8 
an?, or which to use. Can you heip 
me*** 

Thi- OOMMONOT jnd mint well 
kmiwn method ol ptttfm informa- 
tion 10 the -.ttxt\ it b\ UMflji (he 
PrilH 09QNQMd< I rum Ha>it. There 
are 4in ennrnmut number ni ditl 
wmium ol ilnt, tun nisi - 
micro*, but mihrn each machine 
The Prior uatemenr comes with 
nuns parameters, and van tell the 
micro pncuK&f where the nan 

*houM be primed 
The micro keeps a coum ol ilm 
where mi ihc wrwn the current 





pitsiimn is. and 4i i he petit 
minimum, utirii: j I'rim slatrmem 
will cause I he micro in put the 
information ji ihe bcfuniinf oftfw 
ntxi line slier ihts puinier Il the 
I'ntii statement his j comma m it. 



I hat adds j nh\ length 10 the 
pointer, and she nexi piece ut' 
informal inn gels pi trued ji ihc noil 
lib marker 
The pointer that ihc computer 
(continued on page 85> 



Sorting - why bother? 



"What is the point of sorting?" 
If is sot rally until ywu Man to use 
■.mil mum j\ j i, Mil, rather rlun j 

toy, thai you w^rt io *«* ih< usm Rm 
sorting In lad, it it iht 
relation oi sonine.. searching, i hji is 
nlicn the more useful of the ' 

tl i* quicker jnd cacitr in find ■ 
piece ol inlornulion il the Jala it 
ported 11m 

Il >iHi typed m ihc data m order 
anyway, ihtn Vnu would save \mir 
tell ihc iruuhle i>l mwmg to Mitt n 
oui A pfuhtenv gecun when you 
find thai uui hm ii> tivre new 
informality. A thou pr ogra m to ion 
thin i:t for wu meant vihi cwt put it 
where u»u warn 

II mil have pM a MftcS Of 
adJrettei m ofdm aey, I hen the ir»M 
likely ihmu mu'll warn to Jn it la 
tec one ol them I "hit it where j 

tetRMntj routing u>rno in handy 
You could liti all ol the jddtctto ol 
(Vople whoic turtle heCtn* With I 
I nr example To Jo thit um need a 
£rnctal warJi pn^rani. 

This worXt rtit the tollowuik: 
principle I-ind oui where in the 
addrett or record I he mformnion 
twi arc Lompahnp i* tioicd Pm 
L'\ampie. it nn^hl he in the 4thh lo 
Wlh cterectcf potititmt in a vtrini; 
More Link Jl each addreu, and see it 
c'ttaracicn K' to ^ match i jrthlTot 



ijondon, Then if ihc itunch b un>- 

pi inl mil lh^' f ^iwd-, 

Now il I he jddrette% happened M 

Iv in alphabets j1 order nl 
rumct then \nu Lould Mart in ihc 
middle, tee il ihc lown |fOM ate 
Inofcmi! Gm is lower down the 
jlphabei or hiflher. and iht-n look in 
the middle ol the *cvlion you now 
know it '" ; ti sod I umil 

Mm RKJl the N you're Lookn 
This ic knv^n j\ j hmais MStttQ 

"Ihe dinars M:jr^h aSue only 
works on stilted ddia, and tn n't a 
food teavmi lot pelting foaf 
udormtnii in some nrdet. DoiasjE 
ihit ■> simpler than it Mtunds 
have .hi jrrjv oi in niimbcrs, then 
you can vui ii ■my, and 

iiiM one lenipttraK '- j ruble: 

10 HEM SOflT ROOtlNE 

20 OlM At 101 

40 FOR J t TO 10 

SO FOR K 1 TO 9 

60 IF AIKKAIK * tl THEN GOTO HO 

TO LET TEMP A(KI 

80 LET Aim Aire 

90UTAt»E-li TEMP 
110 NET K 
TOT NEXT J 

,\ xers simple rclinemenl ii> ihi^ 
puK in j touril, mi 1)341 vmi do not 
k«p OH Mftittf 0OCC tlw »rra> Is 
tiirted. a* thi* one dnes. 

Pier Letcher 
fconrmuetl on paoe 55/ 



YOUR COMPUTER DECEMBER 1063 S3 



LUNA CRABS 

ByMJ. ESTCOURT 



• f i i d! 



HAUNTED HEDG 

By DEREK BRjfcNSTER 



M ! w\ 



#)EATH CHAS&. "■ 

jBy m:i estcourt : ; - '-. 

mp&aoTftdoysclK* Gotr, * t • 9kj 

>• ■ • 



CTlEGfl 



For airy Spectrum 

ALL TITLES C&95 INC VAT 

! I I 6CTED MCflOMEGA PRODUCTS 

rHROUGH BOOTS, GRI f NS ASOA, 

JOI IN Ml NZJES, LASKYS, WIGI A| 
IIUMHI LOWS. AND Al I (HHtRGOOO 
SOf IWAHI STOCKISTS 

Trade Enquires 



PRISM 01 ,'!>;{ ;';-*L_ 
WraSTERSSOl IWAMI ^1, 
I KiHTNINU Ml CORDS A^ 1 






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KBREW: 



fi •♦<-»■-, t»»";".ilj ■ 




■ill l»jJ» " * ^M ■•!(>.•; ■ L • Ufc»Ai»JLt*J "I'll'IB'll II II rilMi"*! Tf iin»i«>ii>iuiii>«.mi 



Software Ltd 230 Lavender Hill London SW1 1 1 LE 



{continued from page 33/ 
keep* is ihc key to all output to the 
screen ti is this that make* thing* 
like (he I'rmi Tah statement work. 
and ii i\ this ihat j>ou reset if you 
wynl io si art j new page on the 
sCfceO 

Selling a new page iin usually done 
by j mtWMIW ) like Cfc. This wipes 
nfl the old screen, and *ci> ihe 
pomtct "hj^k Ui the top kll-hjiiJ 
turner ol* the screen The CIs 
command is actually j way of 
sending ihe micro a control 
character. 

Control characters 

(attiirol characters ire much the 
sanst a* ordinary characters All 
characters ate represented m the 
computer »* numbers, for example. 
"A" is represented in the computet 
as the number 41 — hexadecimal, in 
■Will, note thai Mime computers 
tee other code* So if you wanted W 
prinl an A on the screen you could 

just I vpc 

PRINT CHRflfi&l 

The reason vou used 6^ not 41 was 



that the 41 w» hexadecimal, so n 
needed converting to decimal' 

i • 16 - 1 66 
In ihc same my, all of the control 
codes have numbers 

The control code 

The control code for Clear text 
screen ~ on ibe BBC — is given hy 
f "iini rul ami ] ., m I he number OC so 
if you press Ctrl and I. at the same 
tiriw ii should Mm pro Men 
I'nlonunaiels you cannot put Oil 
and E. into a PRINT statement, ap 
vou hjvc I o ttll the program to 

PRINT CHRW2' 
instead This has the same ellect as 
typing CK in a program, 

Mailers are further complicated, 
because most micros have iwo places 
in memorv ihat you nan prim fri.Mii. 
One is the graphics area, and the 
other is the lew area This gnd uni 
i he text screen, and ihe kaphas 
screen "windows" You can now 
print from cither io ihe screen Vour 
normal prim statement etc will 
cause text io appear, from, ihe lexi 
wioJtw i , lliis'»(i. with a tfiflercttl 



BEGI 




ninmuiiJ (or every nkkfune, VI>1' 
for ihe BBC GET/ I'lT SCREEN 
lor the Dragon by way of example, 
you can now print user-defined 
characters from the graphics area. 

These specialised command", ate 

hichh machine spcx'itis. since they 

(he wj\ ihji (he memory has 

been organised on that pa rue u la r 

machine. 

So, la MM "P- " depends i'it *hai 
you are irving io do, Print is usually 
j perfect I) letttviMc way ot 
outpuinn^ 10 the text screen,, and 



use oi control characters, ^nd the 
machine's own useiuf tuntiions - 
like ihe Dragon's Print @ statement. 
which allows vou to prim ai my 
pewit iod on ihe screen, are 
recommended First, oi muroe. vou 
have to find out what is available 
Again, your machine Wilt have 
spec ilk summands to dej! with 
prHMittg J torn g raphes areas to ihe 
screen Your manual should al IcM 
tell you wbai conwvmd^ >«iu can 
use, 



Can you do anything sensible with a home computer? 



"Most peopte uw t Mir /w* mtctos 
to team to program m Bask, and 
to run games. But tan you do 
much gI&# with a home micro - m 
particular can yov 4o anything 
sens&t?" 

"I hi \ssw i k is ye* — but there are 
obvious limit!, otherwise banks and 
office* would all be using Spectrum* 
Software certainly exu» for most 
home micros io at lta*t lei you try 
out ward processing, electronic 
spreadsheets and database manage- 
ment. The linutations are usually 
imposed by limitation! of ihe 
hardware 

M'ord proscssmg is far superior to 
using a typewriter — once you are 
accustomed to it it is difficult to go 
back. The key advantage of a WP 
program is that whit you lype 
appears first on the screen, where 
you can correct it and manipulate it 
before finally committing yowself to 
paper. Mosl word processor* let you 
move whole blocks of tent ftom MM 
plats to another, and let you try out 
laying out your lexi in different way* 
— with wide mar gins, for instance, 
or double- spaced. 

The mam problem of doing 
practical! word processing on a cheap 
home micro is that tl soon gel* 
expensive. Apart from the cost of the 
software, which may range from £10 
to JL50 or £60 bui which » always 
more expensive lhan a simple game 
program, you obviously need a 
primer. This may cost at least as 
much a* ihe micro. 

Vou alio rapidly discover you need 
a decent keyboard if your machine 
does not already have one. And then 
you *iart wanting discs — one of the 
convenient things you can do with a 
word processor b keep standard 
let ten and then load them in for 
srrull alteration* when needed. 

Some VI I* program* will even 
automatically prim out a whole 



batch of letters, merging a name and 
address file wuh your standard 
teller. 

A less obvious problem you dis- 
DOM once you Stan using your 
micro a lot to look at ic*i u the 
quality of the screen, Most home 
micros are plugged inio colour TV 
sets, which give a less stable image 
than a monitor or even a black and 
white TV Someiimes the display 
problem lies with the micros i hem- 
selves, as i hey are s-cry much 
designed down to a . 

A few hours of word processing on 
ihe Dragon connecred to a colour 
TV rapidly make* you realise why 
businesses itt prepared to pay a lot 
more money in the first place logel a 
proper office system. 

I'mil Visicak came along no-onc 
had thought of the idea of an 
electronic spreadsheet- This 
program was probably responsible 
for seCliii); more micros than any 
other piece of software. Visicak and 
the host of imitative calc programs 
let you wort out calculations on the 
screen. You type numbers into hoses 
in a grid and then type in a formula 
saying what you want dons 

So if you want ro add up a column 
of Figures you lost type in all ihe 
numbers and then, al the place you 
want the answer to appear, rypt m 
the name of the boxes you want 
added up. for instance Bl + B2 * H i 
Much more complicated mathe- 
matical operations are possible and 
you can work with complete rows 
and columns at a time. 

The power of calc programs lies in 
the ease with which they lei you 
answer 'what if. . ' questions. What if 
you fust change that number iheie, 
what if you alter the formula 
slightly. You can try Out a whole 
number of different approaches wiih 
very little effort. 

Calc program* are quite suitable 
for use on home micros as you can 




Jii j lui ■>! uM'iui worl without »liv* 
j nd the quality of ihe keyboard does 
not matter much. Although home 
micro* only display a small pari of 
the calc grid you can quite con- 
Kofeatty work w:ih moth larger 
grid* than will fit on the screen by 
scrolling. But it still helps lo see as 
many rows and columns as po 
at a time so SO character hv 24 Line 
office machine* still icon 
frequent use 

So-called database programs art 
ihe micro equivalent of a card index. 
The usual approach is for the 
program io display record formats 
cm the screen, which you can type 
information into. Save and alter. 
You really need a floppy ^ svstem. 
: lei yuu select re^otd*, on a 
number of different criteria — all 
people interested in the Qrn. living 
in Sorth London for example ii you 
arc storing information tor a 
computer club file fin example — 
and some let you son selected 



tesords ituo ordes 1'itkn the 
selection and son facilities are good 
the database program probably has 
little advantage over a manual card 
index 

|| yog intend to do a lot ol 
sensible- type things with your ftiictu 
it helps to have chosen ihe right 
machine in the first place 'faking 
into account jwilabihu ol soli ware, 
qualtiy of keyboard and ease ol 
expansion to discs and printer, the 
HHv' Mu-ii" and the Commodore b-1 
ate probably the best home machines 

Next probably come ihe \ 
and Atari 600 and 600, which have 
proper keyboards and a reasonable 
variety of packages The Dragon is 
let down hy us display and machines 
like the One and Spectrum by their 
keyboards. When you couni up the 
COM ol jII ihe add-ons you mav end 
up buying, for serious use the mote 
expensive machines may work out 
better value in ihc end 

fan Stobtf 



YOUR COMPUTER, OECEMBER 19B3 85 



o 



T 



• 





-uii&t- 



i 



i 







" 





Transform your Spectrum with the FOS Keyboard and feel the newly acquired power flow from your fingertips as 
you enter data with lightning fast accuracy. 

The Fuller FD5 Keyboard has been especially designed for the professional user. This elegant, slim line, desk top 
system has a keyboard that inclines toward you and contains all the graphic characters ofthe ZX Spectrum, plus, 
additional function keys, shift keys on either side and a space bar. With all the entry keys double me. lightning fast 
accurate data entry is now made easy. Other amazing features of the FDS include:- 

Go!d plated key switch contacts, guaranteed for 1Q 6 operations. 4 cursor control keys, 2 functions for direct entry 
into E mode. 

Based on the popular FD42 system, the Fuller FDS is simple to install; it requres no [jyfl f\ m\ I 
soldering or technical knowledge. For the user who is reluctant to install his computer ♦ ^L%fl \M jk 
circuit board inside the FDS. a buffer is available [is .75 +S0p&pi which simply plugs into Mr !«/#«/ w 
the expansion port and connects directly to the keyboard - 



MICRO 
> MS 




!■■■■■■■■■■■■ 



Fuller Micro Systems 

The zx centre, 71 Dale Street, 

liverpool 2. Tel: 05 12 36 6109. 



Ami) Vv""*!" 
mr Uilvr 1n 

rival nfwniiv 

mboitnivuKH trm 
*wkn>mml rnuinm] I 
om pr mjuth *t i1w vtn 

hrvi Vlt luw na* bin 1 1 i 

buHvd Iwwttml rmln 

drtMrmwnt In rnVurr mil vrnmr 



HKtmln t lull n*QtotfOtr\Q*Hutr\i\ 

*Ml h«\ Itm will mitkr Iht mm\ «l ynur | 

tutDrnt invUHon ten ididtHtrtv «nd a 
' *HI# <mr yrtt gum**** 



Please supply mf with FDS Keyboardist 

I enclose a cheque 1*0 pay able to 

Fullei niCTO systems for or debit my ciedtt card 

C«d NO 1 I i M I I 1 I 1 II M I f ) D»«tUryca,d 

] Access Card 
Signature 



idreu 



Fuller Micro Systems. The ZX Cer 
1 Dale Street. Liverpool 2 Tel 051 2J641W 



If you have 

anything of 
interest to tell us 
about your 
computer club 
why not contact 
us on 
01-661 3144. 

Local 
news 

United States 

Smdair Amateur Radio User 
Group rs an American club with 
around 100 members m 27 
*iai« You haw* to bt • 
beamed radio hem and be 
wiling to conlnbute to QZX 
l heir newsletter Send jn sae 
Id Paul Newmdn, 3 fled Mouse 
Lane. Loiston, Suffolk 1P16 
4JZ. 



Brussels 

The Belgian ZX Micro Club 
which boasts Ihree TV 
monitor* dntl a vnde range of 
other hardware has just started 
in Brussels Contact Michel 
Hunin ZX Micro Club. 6 
Boule^rd Leopold ill, bte IS, 
B 1030 Bru*elles, Beloe 
Telephone 02 2160175 

Southampton 

Southampton Amateur 
Computer Club has its mam 
meeltng on ihe second 
Wednes day of each month at 
the Medic <ii Sciences Buttdmg, 
Basset Crescent East, between 
7 30 and 10 30pm Theretsan 
active BBC group which meets 
at tfw Crest wood Centre on the 
last Friday o4 each month 
Contact Paul Bin? on 
Chandlers Foul 69050 

Crewe 

The South Cheshire Atari User 
Group meets on the first 
Thursday of each month at the 
Earl of Crewe, Nantvwch Road, 
Crewe Meeting unofficially lor 
some time, the group has been 
going in it 5 present I arm for 
some two months but already 
has over X members. Topics 
such as sorting routines have 
been discussed at recent 
meetings Membership is fb 
par year for adults, or C2.S0 for 
children Then is also a £7 50 
family membership rate 
Contact Mr A Davies. 48 Blagg 
Lane. Nantwtch, Cheshire or 
ring 027O 626969 



COMPUTER 



Paul Bond visits Cambridge 
to see Acorn's technological 
hierarchy show off the 
Electron and really digs the 
"jazz concert" atmosphere. 



ClMKftllHtt MtdUXXMIPtTfR Clutl 

mceis on the third Wednesday of 
month at the Port land Aim in 
Milton Street. Thu worthy tot all y 
is mi ma town rhai is renowned for 
far more than it* dreaming spires — 
one club member estimated thai 
thefe must be anything be; ween SO 
and 120 separate companies engaged 
hi tome aspect of microcomputer 
related work in the area, whether li 
be design, research or manufacturing 

In the midst of all thit rmtro- 
genesis, it is only to be expected thai 
CMC itself wnuid attract a rather 
high-flown or even esoteric follow- 
ittf. The club secretary, l>erek 
Tripp, j* director of Herald 
Cumpmnv a marketing company 
whose standard fare ts machines in 
(he L2O0Q-£*Q(X range, He and hi* 
club treasurer ha4 in lad mnt 
hotfoot from vmiing two computer 
shovss thai Jji in Birmingham. IBS, 
and a show concerned vmh ihe set 
of compute rs in agriculture 

The club i» now m us third year 
jnd thriving — perhaps partly due to 
the fact that its treasurer attended 
the same accountancy course at 
Cambridge lech » Acorn supremo 
Hermann Hauter. 

"i he sturdy facade of ihe Portland 
Arms, harnessed together with the 
English licensing laws provide an 
tlTecttvt bulwark against rmcroktds 

v icwed as a definite plus bv some 
club members who feel thai the more 
serious technical aspects of an 
evening, Such as the one that Ytmr 
VnmputfT attended when Acorn 1 * 
i ethnological hierarchv were there 
in force, might nol be fullv appre- 
cialed by younger compute rnikk, 

Whatever i heir leelmg* about the 
youth of today in general, ihe Acorn 
men were definitely proud ol ibcit 
new baby, ihe Electron, which i> 
what they wete there to talk about 
Adrian Warner kicked oil ti- 
company, giving us his personal 
insight into the soul of a new 
machine. A* the BBC protect closed 
in Nun ember IWI, the early idea of 
■ "baby to the Bccb" was conceived, 
but otn lOLiily the compart) had (HON 
pressing considerations of produt- 
ttoo and selling iheir mam model 

In November I982, emulation 
began with four double -height 
Euloctfdl full of TTI- to model the 
US and make changes to the UIA 
Having one single, complex I'l.A 




CAMBRIDGE 



which handles everything has 
v lowed the F.kciron down by com- 
parison with the BBC, and not iusi 
Mherr processing is concerned It 
provided plenty of development and 
production headache) too, 

In April of ihe same year Alan 
Boothroyd designed the prototype 
casing which under wen- changes 
until November, l-inle things, like 
ventilation holes underneath lo stop 
the machine frving iuttfalhrl were 
added. 

In parallel with the other works, 
Steve Furhei was "doing wonderful 
things" with Fcranti l'1-As. While 
the lust prinied-ctrcuiT boards were 
readv in September I9H2, it was lbs 
L LA that killed all hope of a \<m 
Flcctron at Christmas. All the 
designs umil the current Matt G 
flopped: As the deadline began to 
slip* j number of goodies were 
dropped troni the specification! 
though Mr Wamcs was obviously 
reluctant to say exactly what they 
were. Fie pointed out that it was j W 
per cem density l'l A which evoked 
rapturous L nes of"Crtttjf from the 
a ud ic rue For a moment I thought I 
was at a as concert 

Much has been made in rhe adver- 
tising of the machine's environ- 
mental testing — "We have a quality 
manager who drives me mad" — but 
n makes sense that a machine 
assembled m Malaysia and 
airfreighted around the world should 



be subjected to drop testing and 
thermal shock Still rhe iciis have 
apparently Lont meed British Tele- 
com's medical micro network, the 
Chain, that it is worth ordering 
3MKII F.lccuon-hascd lernuruN 

\\ Inch brings us to one of the 
mam points of the evening — the 
urn riling of the first of a new range 
of expansion boxes which will 
instantaneously customise the 
machine for whatever purpose 
Zahid Naian spoke about ihe 
expansion philosophy "Whatever 
bos we come Ml with has got to be 
very, very cheap ." The box he 
showed us contained the minimum 
considered necessary and provided 
an interlace for cartridges cOntltnfflg 
two IfcK Fproms which would pro- 
vide ihe hlevtron wuh BCPl., Of 
View, for example. 

Another protect it i diss interlace 
bm which actually contains the disc 
and J i s«. -drive as well This would be 
quite dilTereni from anvthing avail 
able 

The club, which has around 50 
members, publishes its own (ournal, 
,".j'ir.. which is supposed to 
come out six times a year — things 
dun' t always go smoothly, hence ihe 
tille I'asi publications have included 
articles on baud-rale generation, 
matrix routines for the Hi 
and RS*2J2 dnver and receiver. For 
further information contact Deici, 
1 ripp on 022J J 15662. 



VOUfl COMPUTE*. OeCEMeefi T9&3 A7 



BRIDGE PLAYER 



At last you can play Bridge against your 
Spectrum Unlike other bridge type 
programs, Bridge Player does not use 
pre -dealt hands 

The Acoi bidding system with a week 
1 NT opening bid is used and the Brack 
wood and Stayman conventions are 
accepted, The display shows your hand 
and dummy, which you also play, the 
current and last (rick, score and con- 
tract. A replay facility and scoring with 
honours, slam and rubber points are 
included. 

Makes an ideal combination with our 
Bridge Tutor. 



SPECTRUM EXTENDED 
BASIC 



Improvfl your programming- Add structure to 
your programs and take the pain put of do 
bugging. Spectrum Extended Basic can help 
you do (his try providing ten additional 
BASIC commands which are considered 
essential aids for most programming applica- 
tions, so much so that many of these com- 
mands are standard features on other 
machines. 

The program occupies less than SK bytes, is 
user friendly, requiring only a two key entry 
and incorporates syntax checking. 
The commands are: * Auto; * Clock; 
" Delete: " Examine; * Find; " Memory: 
* Renumber: * Scroll; " Trace; " Variables 



48K Spectrum 



£8 95 I 4SK Spectrum 



SUPERCODE 



The ultimate Machine Code Tool Kit 
with 100 routines. Renumbers with and 
without go to' a. go sub's etc; on break/ 
on error go to: beep/sound generator; 
block mserts/deletes, REM Kill; dozens 
Of screen routines' random number 
generator etc 

* Index of routines * Call up details of 
each routine including information to 
tailor the routine to individual require- 
ments * Rape a I able demonstration of 
most routines, save and verify individual 
routines * Direct from the combined 
(48K only) Basic program, 16K version 
using printed instructions. 



FLOATING POINT FORTH 

WITH EDITOR 



Supports Forth 79 structures, trig 
functions, logs, RND, square roots, etc. 
the ZX printer and access to I/O 
ports 

Had ail the Spectrum hi* res colour 
graphics, plot and draw and beeper 
facilities. Allows direct entry of machine 
code. Up to 300 stock items, 1 1 7 UDG 
Characters and 23 named variables are 
available Comprehensive User Guide 
supplied- 



16K ,m l 48K Spectrum 



ty 95 48K Spectrum 



SUPERCHESS II 



SNAIL LOGO 



One of the strongest Spectrum chess 
programs, beating Sargon II. whose 
features include; 

7 level of play 

Plays a variety of openings 
eg French Defense. Sicilian Defense. 
Ruy Lopez, Queen s Gambit etc Self 
play mode Analyse mode Enhanced 
end -game play Recommended move 
option 

SUPERCHESS II 

1 6K Jupiter Ace £8 95 

Lynx £B95 



An advanced implementation to the Logo 
turtle type graphics Uses the original 
style Logo instructions to control the 
movements of a graphical Snail around 
the screen instead of a mechanical turtle. 
Includes the following features: Full 
operating system and Editor 
Comprehensive user guide with sample 
programs Multi-level Hierarchic 

Procedures Procedures with 

Parameters Recursive Procedures 
Nestable repeat loops Variables 
Colour and wall bouncing con trots 25 
Language Instructions, over 20 warning 
and error messages Commands to 
control the optional ZEAKLR turtle. 



GOLFING WORLD 



Choose a club and the direction, use your 
skin to miss the bunkars, trees and water, 
reduce your handicap and watch your 
game improve 

Handicap Golf, a 1 or 2 player game 
playedonarandomlygeneratedcourse 
wth a close up* of the greens for putting. 
Reduce your handicap below 12 and 
enter the Club Championship; win this 
to qualify for the Open. The Club 
Championship and Ihe Open are one 
player games played on a set course 
modelled on Lytham St. Annas. Scoring 
card, hole details and leader board 
{Championship and Open) shown. 



F3 95 | 4BK Spectrum 



£5 95 



ZX REVERSI 



When put to the test against other 
Spectrum Reverse programs. ZX Reversi 
was the conclusive winner. 10 level* of 
play (easy to expert) 
Self play, player v. player and player v. 
computer, handicap system, set up a 
position, select the colour of the display, 
scrolling move history, scoring updated 
after each move. 



£13 95 1 48K Spectrum 



£6 95 



PLUS 



48K Spectium 



£7 95 1 48K Spectrum 



£9 95 



ORIGINAL SUPERCHESS 




16K ZX81/48K Spectrum 


£4.95 


16K SUPERCHESS 




16K and 4flK Spectrum 


£6.95 


ZX DRAUGHTS 




48K Spectrum 


£5.95 


Lynx/i 6K Jupiter Ace 


£6.95 


BACKGAMMON 




48 K Spectrum 


£5.95 


SOLTALK 1 Mufti words 




48 K Spectrum 


£5.95 


SOFTALK II Spacegamaa 




48K Spectrum 


£595 


BRIDGE TUTOR 




Beginners or Advanced 




16K and 48K Spectrum 


£5.95 


SPECTRUM FORTH Integer 




16K and 48K Spectrum 


£9.95 



Also available at Boots. WH Smith and all 
good computer shops 

DELIVERY 




Send SAE for catalogue 



UK prices include VAT and post & packing 

EUROPE add SOp per program ALL OTHER PLACES for air mall add £2 for the first program and 50p for each subsequent 

program Surface delivery add 80p per program Send cheque, posial order or Access no to 

CP SOFTWARE, Dept.YC9,17 Orchard Lane, Prestwood, Bucks. HP160NN 



86 YOUR COMPUTER. DECEMBER 1983 



Star* 
chart 



Wild West Hero 

4SK Spectrum: 
Shoot-'am-up. 
ftmescape Software: 
€590 

+ * * 

Like all good Westerns th-s 
he* a good opening visual and 
the controls are clearly 
explained beneath the WikJ 
West saloon oat type writing. 
A brief katodoscopic display 
transports you to the Arizona 
desert where you are suddenly 
surrounded by tough gur-h 
toting fsombres and rather 
volatile cadi which blow up 
and kill you when you bump 
into them, You automatically 
shoot in the direction you are 
moving. Once you have made 
• fiarne as a fast draw, more 
tenderfeet appear on screen. 

The Ultra 

48K Ork 1; 
Sftoof- 'em-vp: 
Persona/ Software Services: 
€69$ 
* * * 

A touch of nostalgia here for 
the heady days of 1978 when 
the first apace invaders began 
to creep into local pubs and 
arcades suddenly took on a 
new (esse of life The Ulna. 
as usual, are an evil race of 
mutant afertt — anyway they 
come in 16 wave* of 
increasing mutancy a-nd you 
attempt to destroy them with 
your lone laser. Good use of 
the OnC'T's colour facilities 
and a quiet /loud option on 
sound effects, Since a quiet 
One & a contradiction in 
terms, you should be warned 
thai option two is liable to 
induce shell -shock. 

Tool Box 

BBC Model A or Mode/ B 

Utiiittes 

BBC Soft 

£2100 

it -kit it 

Over 20 programming aids In 
machine code and Basic, 
including a character defmer. 
compactens, a program re- 
Sequencer, variables dump 
and six son routines, plus a 
fat ring bound manual A 
worthwhile collection, even if 
there are some Hems you do 
not need But beware the 
Epson graphics dumps: they 
only work with the MX 80. 
and the disc version does not 
go at all 



SOFT. 



Bugaboo 

M48K Spectrum 
mrS95 

* * * 

If yoi have ever had • do* you * ill 
know how agile the flea is. Bugaboo 
it ■ highly original new program 
which fear urn an athletic yellow flea 
of prodigious tumping ability Hal 
task is to escape from ibc bottom of 
the screen to the exit ai ihc top 
Attempting to thwart tin ambition is 
a vicious yellow pterodactyl which 
swoons around in menacing fashion 

Dim of the most attractive leal urn 
of Bugaboo i\ us landscape; a mulu 
levelled collection of dark ctves and 
lagged ledges decorated with 
psychedelic coloured mushroom* 
and shrub* Cursor keys allow you to 
scroll left and right, up and down, to 
iirw rhc prospects m store. 

Controlling Bugaboo's leaps is a 
tricky business, not helped by ihe 
tad I hat the on- 1 ape instructions are 
not very explicit Since this is a 
Qulcfcsihrl pame the packaging 




ton tarns only a silly blurb, with 
possibly the mow appalling rhyme 
es-er written. Nonetheless, Bugaboo 
is one of I he most interesting and 
enioyaMe games to appear. 




rus Chess 

mOragon32X 
WCartfktge 
WU24.9S 
WDragoa Data 

• * * * 

Cym s Cm vs. km ivirti on cartridge 
hv Ihagon Data, is ■ version of the 
program which won the 1981 
European Chess Championship- It 
has been decked out with quite a few 
extra facilities Vcm can set up the 
board for a problem, run through an 
already completed game, or take 
back a move; and, if you wish, the 
ptOgnm Will dernoristritr wh-it i: 

rrunks is your best move 

Perhaps the most useful feature is 
i he way it allows you to interrupt us 
thought -process. At any of the nine 
levels or playing strength you can 
force Cyrus to come up with the best 
move it has found so Ear. This u a 
blessing since chess programs can be 



tnfunatingly slow at higher levels 

Bui all these options aic 
incident is) to the most important 
question one should ask of a chess 
program — how good a player is it ' 
The answer is that for a home 
computer program Cyrus plays ■ 
surprisingly strong game. 

Chess programs are notoriously 
weak 41 vtategK play. Typically they 
will defend a pawn with u 
while ignoring the build-up of a 
standard king's side attack ( 
however, is rather better than most 
It plays a highly agrcstive game, 
throwing lis pieces forward and 
piling on the pressure early. 

It is all loo easy to undercstimats- 
the p rog rams skill, especial)) > 
pla 1 . passisely. Before you know il 
Cyrus has swamped your defenses 
jnd sou are about to bt trounced 
The best course here is to weather 
the siorm with cautious play: if you 
are lucky ir will then over extend 
itself 



737 Flight 
Simulator 

msec 

MSatamandw 

* • 

Theki must » people with more 
flying time in computer cttltM 
around the land than British 
Caledonian's entire rlamble intake 
combined. The troubte is, every tune 
we get real pilots behind one of these 
computer simulator* they lend to say 
things like "This perpetuates ihc 
myth that flying u difficult", or 
"Last time I went to the Boeing 
facility all I had to do was push • 
button and the blood v thing took off 
by itBcii " 

However this may be, if you can 
not run to a Piper Comanche at the 
moment, a flight simulator wit! give 
you a better ides of the theory and 
instrumental ion and some ides of 
now various controls relate than imt 
reading a book — but u b no 
substitute for the real thing, or rven 
for a real flight simulator. As there is 
no similarity between the layout of 
your computer keyboard and the 
Controls of a jet airliner Salamander 
has, sensibly, not attempted to 
recreate the mi raft's control layout 
on the keyboard 

There is ■ pause during the 
loading procedure when you are 
asked if you want to define your 
runway — because of geographu~.il 
features, restricted areas and air 
icantmuvd an page 91 i 




YOUfl COMPUTER, OeCEMetH 19«3 89 



WHAT THEY SAD) AT THE PCW SHOW 



'Very impressive graphics" 
'A bJimmin' good mega zap" 
'Very smooth. . .I'Ji have one" 



Tim Hartnefl, author of many best 

sefJing micro books 

Jeff Minter, top Vic 20 & CBM64 

games programmer 

Andrew Pennei, author of 



'Mastering Your ZX Microdrive' 
See us on Stand 216 at the Your Computer Christmas Fair — December 15-18 



to name but a few who saw... 



WILD WEST HERO 



Mow you can enjoy 
the game that the 
experts loved 

Wild West hero captivated you in the 
fastest, meanest noisiest battle you 
will ever experience m these times, 
Up to 80 bandits will challenge you 
on each wave, all on the screen at 
once, all smooth, all in hi-resolution 
graphics, see the right hand column 
for full spec 



ONLY 



£5.90 



INC VAT & POSTAGE 



For the 48K Spectrum 

Wild West Hero uses full colour 
graphics, hi-res, smooth movement, 
dramatic sound effects, 100% 
machine code, high score, two play 
option, compatible with Kempston 
or Downswayjoystick interface. 
All Timescape products are guaran- 
teed for Mfe, if our software ever fails 
to load return the cassette for an in- 
stant replacement. 

All orders despatched within 24 
hours of receipt of order. 




Timescape Software. I Virginia Gardens. Miln- 
ga vie, Glasgow G826LG 



1 VIRGINIA GARDENS, FAIRWAYS 

MILNGAVIE, GLASGOW G62 6LG 

Telephone: 041-956 5058 



r 
i 

Please send me Wild West Hero now! 

i 

| I enclose cheque/postal order for . 

i 



Made payable to Trmescape Software 

All routines contained are fully copyright, copying 

all or part is illegal 

Wild West Hero is copyright Paul Holmes 1983 



90 YOUR COMPUTER DECEMBffi 1983 



{continued from page SSi 
traffic control requirement*., no two 
runways are alike. You fan nan 
select i scale to sun iKe hk of the 
chat! to thai it fits on the screen 

The controls which greet you 
when the flight deck ii put up 
include compass heading, fuel 
gauge, DM I — di nance measuring 
equipment, artificial horizon, 
altimcler, gear position indicator, 
VSI — vertical speed indicator, and 
IAS — indicated airspeed indicator 
It iv worth il lust for learning the 
j.r.iiiyms alone, Future airline 
disaster movie* might do well to 
feature a icenc where, the OVH 
having all been struck low by 
salmonella and the dipsomaniac 
conscience-stricken ex-flier having 
failed ro make ii up the step*, an 



unseTmli brawl breaks out between 
owners of ZX-8J, Atan and BBC 
flight simulation programs. 

Documentation i> excellent with a 
hardy labelled representation of the 
flight-deck instrument panel, a quick 
guide to control key* arid a useful 
flying IcHfl to familiarise yourself 
with i be controls. 

This said the visual display itself is 
DM very impressive. There is no 
trim from the cockpit when you take 
otY — you are flying in "low cloud" 
- which is the computer version of 
the black square that is supposed to 
be a picture of a black cat in a coal- 
hole at night 

The instruments all work, and t his 
is the son of game that will appeal to 
people who like figuring out what is 
point: on from instruments. 




>s. 



KOU NCMCR PLRYCD PIHANIA DID YOU 
SORRY ABOUT TMlft,I UON'T BC LONO 



Groucho 

■46VT Spectrum 

m • 

\ufQnvit3 UK. 



it it it 

Outs u a *i>m i? where people do 
not know what they want and are 
willing to go through hell to get it 
Such was the tot of h ma macs, as the 
helpless purchasers or the last buj 
piece of competition software from 
Automaii became known 

The new mmdhender from 
Portsmouth confirms T R 
Marshall's opinion thai what this 
country needs is a good the r ein 
cigar, in fact, there was even one 
attached lo the cassette ben. Thu, 
and the "'smash-hir disco track" on 
the flip-side, which is a curious 
fusion of Mark Kimpller vocals and 
l>epeche Mode backing, With h 
Bonzo Dog Band play-out indicate 
the company's belief that Pimama 
and Groucho are not so much 
adventure games, more ways of lik- 

The prize you have to keep pOttf 
eye on in this case is a trip for two to 
Hollywood to meet the star whose 
mystery personality is hidden within 
the program. The lucky duo will fly 
Concorde to New York then sub- 
sonic to Hollywood. They come 
back on the QE2, subicct to 
availability. 

An excellent* loading graphic 
shows the immortal Groucho Marx 
with twitching eyebrows and his 
famous cigar On following the first 
clue the program correctly deduced 



that I had never played Pimama and 
then conventionally asked me to 
w jli j minute. Loading completed, I 
was plunged in the scenario of 
Mcttoviltc Burger Valley. Tinsel 
Tosvp and Indian Creek. Having lost 
quite a lot of Bay money tn the local 
casino, I went into a bar where 1 met 
a Swedish actress whose name J had 
to guess from a number of clues 

Bui of course, I really cannot give 
too much away, that is the catch 
when reviewing this son of game 
with a prize Sullac ro say the game 
is humorous and the graphics are 
CSCelirnl 



Chequered Flag 

U48K Spectrum 

MCS95 

MPstpn Computers 

it it it it 

KUMQHED UMND the wheel of your 
Formula 1 racing car the endless 
ribbon of tarmac unreels towards 
you at an inctedible rale — well, 
u,mie fast, This is an impressive 
simulation of Ann's Pole Position, 
although for scene reason the trees 
appeared to be red Perhaps 
autumn 

Bocks, warning arrows, lakes and 
other landmarks zoom convincingly 
towards you over the horizon. The 
engine strains as you go up hills 
Instrument* require careful monitor- 
ing to achieve ma* mm hi perform- 
ance and avoid skidding or 
overheating. Vou also get a choice of 
cars The Ftreth Turbo, the Psion 
Pegasus' -md the McFasttr Special 
Fach hii-k in own character i • 
i he Mc'Fjsrcr has an automatic 
■jmbott* so is ideal for begmncrv the 
Fcretti is lurbocharged and develops 
640 bhp between &.0OO and 10,000 



revs pei fnimm 

The dashNiard (Mlflfay has fuel 
and tempcraTure guagc** a gear 
vile i ion indicator, a rev counter, a 
lap counter and a lull analogue 
spcedonscter Real -life h-izatd- 
.in bidding on oil patches and 
coming olT the road are well- 
simulated. Runninc over glass on 
the road causes a tyre lo hurst, You 
wobble violently and the car slow* 
till you can reach the pits 

Ten circuits have been 
programmed m any where from 
Psion Park to Saturn Sands, or more 
let rest rial venues like Silvers! one or 
Moitta. There is even a circuit 
whimsically entitled Micto Irnu- 

An impressive array of keys are 
used to pel the tine control required, 
at least eight for actual driving, plus 
a pause and an abort key You can 
turn fast left or Mow left for example 
casing diflticm keys, which is 
great lor your ^iMiidiiwtion, bow> 
ever, this is a game wbicfa erica M 
for a option. KeVetlhcless. 

grab i" one of (he most eflS 

<>f the Spectrum graphics 
facility 




Free Fall 

mibciwn 

Mf920 

UAcormpft 

it it 




A MMIliAl ivisi in any IfaKO 
station ihesc days is mvasusn bv 
alien life-forms. In Free Fall 
Atpbosd* have "infected your air 
supplies with their own cyamde- 
kiscd atmosphere" and you arc the 
only crew member to hasx got his 
space suit on quickly enough Your 
task, obvious ,, turmt and 

destroy as many of the Alphords as 
poaaihlc 

The screen displays the octagonal 
station around which you float, 
propelling ■. oil r sell with ieis or 
pushing off from the side with your 
arms. 

Methods of killing the Alphoids 
are quaintly old-fashioned, vou can 
punch, kick or ram them If you can 
grab hold of one you can use a bomb. 
The alien* themselves come in the 
rather terrestrial form of Cnibwds, 
■.■ids and the particularly 
vtcsous Warpmds They will attempt 
i o pins h . si i n g or bomb you to death 

free Fall is a monochrome game, 
Acorntott having sacrificed colour 
lor high resolution and, as such, is 
visually rather dull There are also 
Rkg rr.-mv keys for comfort, ihhllgh 
you might find it more manJijcjMi: 
wuh a (oystick. 



YOUH COMPUTER OCCEMMfl 1983 91 








f 



a 



julei bdigamol theci ^owilH t thetr hands on one 

upet qi' uidsiit fuller Mastei Unit the ultimdte uOit the requirement foe (he 

serious games enthusiast The Fullci Mastei Unii Incorporates both the Fuller Box a* mazing features include a 

spe* theslsef. an independent sound synthesiser, a joysttch interlace, an ampli 1 standard Spectrum sound a 

l mieitai i" and ri In ti socket Tlie pdcli will also include d Mastei Unit demo tape and full documentation 

As well as the Master Unit this Gift Pack also contains a de luxe Joystick, with suction adhesion, a turn smooth action dnd a 

moulded hand qnp incorporating twin hring buttons 

Onceyt- Hum hash dedlo the fuller Gil! Pat K you will have .on d computt-i 

syslern that is second to none ^^^mj^ ^% « 

Nov. tn pit your mind against the tout unique exciting computer g.mu-s uuluded in the L ^jt ■ 1 m \ I 

imes have be*-: for this rem and have add* ^F I \M II J 

>nd speech lo bring out the very ti um mm m *J m*J *S 

Ihe toiler Gill Pack saves yo I buying these ileim separately tntlusive of post and pdfhdgmg 



ML 



SYSJt MS 



Ql 



Fuller Micro Systems 

The IX Centre. 71 Dale street. 

Liverpool 1 lei DM 216 6109 



41 lnB*1 

*» »!i i.. -i' 

iiLaiiiitm ihr 

■n tnif ft WWMi * *nA 

a r »t *up»n l mnwiM} I 
n * i ilw VfTV 
brll Wr haw nu» tuft * 
bidHMJ nr* luj Oiilri 



** i«lr» a wh torn* Ml i iMpMpruft 
*M uti lh*l anO **hr Ac mini of m 

Hrti<rlkiiMi-pulJtkmli*irlufc<UfY.tfKl - 
<*»■ * * HUdwdr iMHT re* giui^nirr 



Hmk supply mf with rulift i.ift Partus' 

I enclose a cheque 1*0 payable to 

Fuller Micro Systems tor or drtii my crrdu cdtd 

Card No 1 I I I 1 I 1 I 1 I I t j I 1 1 1 C Oarrlaytdrd 



Access Card 



Mdmt 



f uii* i niao systems. Ttoe ix centre. 

7] Dale SReel. Uverjwoi 2 Tel OSi 2166109 



£100-£400 
MICRO 

SURVEY 

In the twilight zone between pocket money and a 
government enterprise loan there are several good 
reasonably-priced home computers, Your Computer 
assesses the advantages of the machines at the top end 
of the market and suggests points to ponder prior to 
paying a pretty penny. 



This month's rhviei* covers the computers 
(hit cost over £100. The machines can be 
treated as more than just games player* and 
have the ability to run some of the simple 
business-type programs. Because of the change 
of emphasis in use, the general emem by 
which ■ machine is judged shifts as does the 
required quality of the product. 

L»t month's preamble regarding the 
requirements of games machines will 
obviously not be repeated, but it is necessary 
to discuss the long-term viability of some of 
the contenders for your money, followed by 
the requiremems of a home computer being 
used as a business tool. 

The long-term prospects for a number of 
computer suppliers is not good. There is a 
need for rationalising and a combining of 
resources if the UK firms are to withstand 
the imminent challenge of the Japanese and 
hold back the American push for further 
market penetration. Divided they will fall. 

Design is second to none 

The design of the computers is second to 
none; the problem arises in producing the 
range of peripherals and software at the 
product launch, necessary to sustain an initial 
market penetration with further developments 
of current and future products. It is no use 
coming up with a promised accessory a year 
later. 

This requires extremely tight quality- 
control or the products and an overall 
discipline that may be tacking in some of the 
Hcdglmg companies, 

On the honzon are several computer 
systems which, on a computer head to head 
basis, are way below rhat of the best t'K. 
suppliers. But with huge resources available, 
the manufacturers arc able to offer 
immediately those facilities which make the 
system cost effective and not just a 
technologically advanced toy, with a promised 
golden future. 

The day* of being able 10 market a sub- 



standard or half-developed product have gone 
and any manufacturer trying rhat now will get 
severely burnt. 

Merely financing future developments al or 
just above existing levels is a recipe for 
financial disaster. The market is about to split 
into very low cost home/games computing and 
business computing. Low cost in the home 
computing market means very large overseas 
sales which no U.K. manufacturer has. 

The business market is less likely to buy on 
sales hype and will be expected to take a look 
at the cost -effectiveness of computer systems, 
which means available hardware and software. 

]n 1 he business field mot! of the 
manufacturers do not supply or support 
software, they might distribute the odd game 
but they are in the business of selling 
computers. The software houses are likely to 
be the only source of supported software. 

If you know what you are doing, then you 
can write your own, otherwise the software 
needs support. 

It pays to ihmk of the consequences of 
hardware breakdown and of the software 
having a fault: 

Are you automatically notified of software 
faults? — is this service available as an extra ? 

How long is support guaranteed in writing 
for your system? 

If the computer breaks down, who will 
repair it? — how long? - will you be able to 
manage if all the information is now stored in 
the computer and you cannot get to it? 

Do you require back-up facilities? Thus if 
you arc computerising your stock control, 
what happens if the floppy with all your data 
on it gets accidentally damaged. How do you 
recover, not only from the heart attack but also 
recover the data which may have taken months 
if not years to accumulate. 

Al a local level, what about security? Can 
your computer or data be wilfully damaged? 

It sounds a terrible situation to be in. But it 
is not really that bad, it |ust needs careful 
thought and planning to avoid possible 




disasters ihat arc predictable. A car is not 
expected to work forever so why expect more 
from a computet' 

Cassette tapes ire the cheapest means of off- 
line data-storage but suffer from several major 
disadvantages. The data can only be accessed 
serially — first file first, then second file etc. 
Data in a cassette file cannot be changed; it is 
necessary to rewrite the file somewhere else. 
Getting a particular file can be very slow. The 
advantages other than ihat of cost are the 
general availability of cassettes and the very 
large storage capacity of cassettes. 

Cassette data storage is only su liable in a 
small number of cast* at present. This 
statement may be reviewed if sending 
electronic mail to answering machines is 
proved 10 be both cheap and reliable. 

Microdrive* or floppy tapes are a slight ty 
more expensive means of data-storage using an 
endless loop of iape. The Sinclair Microdrive* 
cost £50 each and can store approximately 
°0K bytes, the floppy tape drives expected 
early in 1984 will cost a little over twice thai 
for an extra 50 percent storage. 

This meant of datastorage is relatively new 
and it i* advisable to duplicate data in a drive 
until long-term stability is proven, The 
Microdrive and floppy cartridges permit files 
to be erased and then rewritten — quite slow 
of course but the ability to change data is 
available and that is what counts. 

Disc drives and interfaces 

More expensive at about £200 are the floppy 
disc drives, the cost may well be much more 
because of the need for an interface to control 
the transfer of data from computer to disc. 
These can store about I G0K bytes of data in 
single sided format. Double density and 
double sided disc drives arc available but at 
even greater cost. 

There are currently two standard sizes of 
floppy disc, S inch and 5 inch. The 8 inch 
discs are becoming a bit dated but the 5 inch 
floppies are reasonably reliable and provide 
rapid random access to files and data 

Hard discs represent the top end of the 

storage market, capable of storing very Urge 

(continued on page S67 



YOUft COMPUTER. DECEMBER 1913 93 



automata.. Vwe put some TING in computing" 




f 6.000 PRIZE! 



PIMANIA 

have YOU played "Pimania yet? no . onf HAS W on 






"PIMANIA" YEI 

"THE BEST ADVENTURE GAME WE HAVE EVER REVIEWED" 

(Sinclair Ustrt 
"At l«st, the alternative to death £t destruction games " 

rWfocA Micro) 
'The best evidence that computer gaming has come of age . , . the 
complete entertainments package. Pimania is an adventure 
enthusiast's dream " 

(Computer & Video Games/ 

"A real Me treasure hum meels Manly Python . " (P C. W. I 

"A real treasure, dripping with gold and 

diamonds " 

(PC News/ 
"Health warning: this game can damage 
your brain. Try it, you'll love it" 

(PcrsonMi Computer Woridi 
"An all time classic. Automata must be 
congratulated loi their fantasies 

t Dragon Byte) 
'THE BEST ADVENTURE GAME EVER 
WRITTEN" 

(The PtMsn) 




my name is Uncle 

GCCUCHC 

you win a fat cigar! 



Automata proudly presents its 1983 BIG PRIZE PROGRAM starring 
Groucho, (he P.Man and a qalaxy of Hollywood Stars. With a free 
outrageous disco single on every cassette If you thought "PIMANIA" 
was entertaining you ain't seen nothing yet ' Discover the identity of 
the world -famous Hollywood personality that we have hidden in the 
program, and you can win a trip for two to Hollywood, to meet the 

star m person I Fly out on supersonic 
■ahnjUfr ' n^ ""' — — I Concord, jet down to California to meat 

the Star, stay at the fabulous Waldorf in 
New York, then cruise beck on the 
Luxurious QE2, with f 500 to spend along 
the way li r Dosing date: June 1st 1984 
The winner to be announced on our 
regular back page m Popular Computing 
Weekly, on July 4th 1984 . . . 




ran 

la 



^7 



rr\ 



u \ * 



Qj 



i« T*- r 



Wt dar* you to play GO TO MIL 
tfltmit your wmpulu - but BEWARE. 

it may well win 1 Riw to th* 
chill tng> &f GO TO JAIL from Auto mi la. 



"This excellent simulation of the famous board game is unique 1 There 
ere other versions, but this is real fun A triumph of the programmer's 
art. Full marks. Another superb game lor Automata ' (Personal 
Computer World I. 

"Smooth continuous display, Allows you to personalise the 
program " (Your Computer). 

"The game has to b* Men to be appreciated- My Spectrum 
outsmarted me I" (Personal Computer News}. 

"Up to five players, including your Spectrum, a large scale moving 
board display, honest banker We dare you to play against your 
machine. But beware! ft may well beat you," (The PiMenl. 



^ MORRIS 
meets the 

mm 



From the distant constellation ol Morris Minor comes "MORRIS" ihe 
intelligent little car with a big problem: Morns suffers from 
claustrophobia! Abandoned in a mult) storey carpark, our tin plate 
hero must get out fast, the problem is that PHANTOM KAMIKAZE 
BIKERS from the distant galaxy are attar him, and he only has h* 
Mag>c Horn to protect himself ... I Featuring worrying wheel 
clamps, penurious parking fees, treacherous tin tacks, problem petrol, 
hesitant hydraulic ramps, loony lift cages, creepy carbon monoxide, 
fastidious fuel gauge, and those fearsome phreaky phantom 
Bikers ... I 



Kempston Joystick compatible, machine code, 9 screens of play. 
with tree tear -jerking record on the flipskle "LEADER OF THE PAC ". 
by Lady Ciair Sinclair & the Pi Men. 

MORRIS MEETS THE BIKERS THE LEADEROF THE PAC! 



PLEASE SEND ME THE FOLLOWING SPLENDID COMPUTER 
SOFTWARE, I enclose Ihe right money: 



PIMANIA Spectrum 48 KE10 

PIMANIA. ......... Dragon 32 C10 

PIMANIA B.B.C 32K C10 

GROUCHO Spectrum 48K C10 

GO TO JAIL ... ...Spectrum 48K C6 

BIKERS ......any Spectrum €6 

TOTAL 



AUTOMATA UK LTD 

31 HIGHLAND ROAD 

*OATSMQuTH HANTS 

PCH*0* ENCLAIWO 

t*i >ojo*i tm*i 
vat no xcn*ii) 



or please charge my AC CESS CARD.' EUROCARO MASTER CARD 
CARD NUMBERg^ I > >. ■ . > i ■.■■ > > i t I 




MY SIGNATURE 

MY NAME ..... 

MY ADDRESS... 



POST CODE 



AD prices include VAT. packing b postage withm the U, K. please add 
10% to total price for ovef seas Orders. Trade enquiries are welcome, 
leave the following space blank for DESPATCH NUMBER: 



94 YOUH COMPUTER, DECEMBER 1983 



(continued from pegs 93) 
amounts of data and providing almost 
instantaneous access to files. Winchester discs 
capable of holding over 6 Mbytes are available 
for approximately £450 plus Additional costs 
for an operating system and interface. 

A great deal depends on how much funding 
it allocated in the computerisation of the 
business. If you are not Sure what l o do, buy a 
cheap micro and play with it for two weeks 
and then ask your questions. If you dilltgently 
work your way through the manual, there 
should come an understanding of some 
keywords being used and at least the user will 
know whether computing is the right thine;, 

I ben is absolutely no point in following the 
rest of the flock if the user finds it impossible 
(o understand computing,, that is just another 
way of spending money. Computing can bring 
efikkncyi it can also bring incredible wastc- 

[f the decision is to go ahead with 
computerisation then find the software first — 
that is the most difficult part — and then buy a 
computer which will run the programs. 

An alternative approach is to use the 
training facilities offered by a number of the 
larger retail outlets- These classes are run on a 
country-wide basts by Tandy and in London 
by a few of the major stores. 



As a guide perhaps the following advice may- 
be of help: 

P| Take your time and find the software 
package that ur business, ask your 

association for guidance if you have one. 

■ Vou are looking for i system that suits your 
needs, that does nol mean that you need ihe 
"best" computer. 

■ Colour may not be relevant in a business 

•ire environment, 
H The software bought for the computer and 
the hours spent in setting up a computer 
operation will far exceed the price of the 
computer itself. Cost is a factor but in a 
business many other items contribute to the 
total system cost. 

Home computing 

Please beat in mind thai with computed in 
the price rjni;c of £10(1 to i<\W WS arc talking 
in terms of home computers providing some of 
i he facilities of real business mkros like ihc 
IBM 

This machine has a huge array of fully 
supported nftMl available for almost any 
business jluviiy. hut ihev do com money and 
squire a financial commitment. 

The choice of using what ts effectively a 
home computer is justifiable, but ihiU 




providing adequate software is readily avail- 
able or the u«r has the inclination to must a 
great deal of time and effort in producing the 
software. 



SORD M5 





M 



airnmiti 



1* 2 3 4» 5" G« 7- 8* 9 



- * a* ■ a 



at s "*o " u '■ - m ""• - *a 
W* E< R" T« Y* U* 1+ t> t>* •• 



A- S 0* F* G' Hi J* Ko L* . 



Z X« C' V? Be N* M» . ♦ . „ 



*o t o 



a : o i «j 
t*B 4 B 



Pit ■ 



fl79J5 



Proc*MO» 


2 80A fl 3 6 MHt 


Keybtwd 


Rubber moving key 155 keyi) 


Avatfette memory 


3K byiee 


Operating system 


Keyword or typed entry 


Oat* CO" BClKwv 


No iyrtfai Check on entry 


Error formal 


Error coda* 


Edrtof 


Screen editor dirtirtodi 


Cwmit interface 


PSObaud 


DiepJey output* 


TV phi* video 


Basic 
Expansion 


Vary IMtad. Need* Besfc-G 


CafridQn C*nTran»c* type 

l/F 

15 colouri 32 ipnte* 


Graphics 



■ .. .- ittor 256x192 
Colour resorulion 2S6il9? 
Sound Tht«r ehanrtek plus 

Through TV 



Game* High quality nnwvt but 

e.penvve •™j m thOTauppty 
• The Sort n purely a game* machine end doe* 
nol appear capable of interfacing mio dree drive* 
The uee ot the ceaietl* interlace n i**ry to prove 
too slow The amouni ot memory available * very 
wnaM for a machine m thra price range The manuals 
do not explain clearly now io gw it* advanced 
graphic* capabilities o! The compgTw wrtwri include* 
i which may ba attemated tor ar«malion 



TRS-80 COLOUR 
COMPUTER 




Puce 



f 1 19 9b 



Keyboard 



«S09E6 0:9MH, 

Plastic moving key 163 key* I 

•K 

Typed data 

No syntaii chaok on data «mry 

AbtKjrwauom and error ene 

number 

line editor 

1500 baud 

TVonty 



Operating eyitem 
Qata correction 
Error lormai 

Editor 

CaaaavH raeffei ■ 

f>*pl*v Output* 
Banc 



Pitei resolution 

Colour tit*efcjtJQr> 
Sound 



Extended Banc <Vic/o*oh! 
RS 232 socket b cartridge port 
Hmm colours 
256*192 

12S - 1?8 i W eotoury 
Single channel through TV 



Game* Considering the computer age. 

the aofiwara it anpananra and 

only average in performance 

• The color computer hat been wound aome time 
now, and has alt the peripheral necessary la make 
an e l e me n tary butmeaa machine II » exparwv* 
compared to other machine* pi timiiaf 
performance A large machme which ha* a buiii in 
power supply. Software support » likoty to ba better 
than that available lor any other machine 

minimum business system 

Colour Computer f 179.9s 

Ok Drive fafJO 

RSZ33Pnnler FtM 



VOUHCOMPUTEH DCCEMBiB T»g3 95 



i continued from previous page) 

SPECTRUM 48K 




ON THE 




GRID 



COLOUR GENIE 



Wh 



rise 



he 

Keyboard 



correction 

Error formal 

EdWor 

CwM ftf m ■■•p* tit 

Dtspiar output* 

lejjc 



Graph** 
Pu»*r raeotution 
Colour resolution 



Z-80A # 3 & MH* 

Hubbe* mowing key 140 k*y*l 

4IKbv»* 

Keyword inirv 

Each In* wnti* checked «n 

entry 

ftjd TtQf mwian 

Line edrtor Wf «MY » UK 

fttHpftir iSOOhsud 

TV Video (Ion iht conrwetw 

Sinclair Bitvr 

Edge Connector. «/Pt b t/F2 

Eight colour* - UOG 

25*1)32 

32x48 man. 



Sound 



ITujfm mlnrteMe colour* 
Smott cnarvwl beep 



Gifflit Mhw of high ouahty cheep 

• The Spectrum h« * moving key keyboard which 
not everybody Into* If t* probable (hat yOur cod 
rmcrodrive storage will bung •bowl • large range Of 
bjiineaa software The lack of descent sound from 
b»m: it unHu)ry to mum ■" * Pu t inaei oonnart The 
ability tot wm el Spectrums to access the same 
dititoaa* through trvMriao* 1 « wary useful in an 
educational ernriranrnent. 

VIMMUM BUSINESS SYSTEM 
«K Spectrum f 1 30 

twiKfi €30 

2McrotMw CiOO 



MEMOTECH MTX 





Processor Z80@?2MH f 

Keyboard R«al keyboard l&3 keys! 

Available memory 26 K 

Opening system Typed entry with function key* 

Data correction No tyntai check on data entry 

trror format Abbreviated **'«* meeaaoe* 

Edno* Una editor 



Display Output* TV and video 



Banc 
Expansion 

Graphic* 

Piast ratoMion 

ColOut reaohmon 

Sound 



Average Intplerne n tatJon 
Paraaei interlace ft cart ndge* 
Eight colour* 

MQxtoe 

160 • tOO IfOut tobursl 

Mulii channel 



Game* Mot much sof twa re! 

for the flame* anthuaieat 
• The latest Colour Garnet contain en enha nc ed 
ROM with uvtrtl minor improve m ents The 
iridution of integer, single and double paction 
doe* make the computer more suitable tor business 
usage but the version ol Basic implemented n • little 
dated The picture atabelty on tbt* modal was not afl 
that n should have bean. 



Processor 
Keyboard 



Operating system 

Oat* correction 
Error format 

Cassette interface 
Display output* 



2 80A $ 4 MM* 
Aaai k*yboa*d 179 fays) 
iSKby*** 

Fash Hn* eyniAn. enacted on 
*«ry 

f irty pood ecetof 
f M error message* la 
t nsrirv*) 
2400 baud 
■ t eno monnor 



Cornprehenvve with built m 



Expansion 
Graphic* 
Pis** r*sotui<on 
Colour r«*Okj (ion 

Sound 



Centioruc* & etparman Shi 

16 colours 

396x1*2 

256*192 OScotounl 
Sprite* 

Three channel* * Hi h output 



Soma 

• Again, it * hoped thai th» computer vyiU be eble 
to run CP'M software in the vary near future 



ATARI 600XL 




Pfiea 



f 159 99 



Keyboard 
Amiable memory 

Operating ivVem 

Data correction 
Error format 
Editor 

Cassette interface 
1 output* 



99030 

Real keyboard 163 key*] 

6 13K byte* 

Typed entry 

Each \mm cheeked on entry 

Error coda* 

Very good screen adrtw 

Require* »n Ai*n recorder 

TV plus video 



Expansion 
Graphic* 
Pinal reeotution 
CoJour retoKibon 
Sound 



Average Baoc impJan*iantation 

Par afld bua and cartridge 

16 cotouf* 

320*192 

iflO > 160 Hour cotouf*! 

Four Channel* Ihrough TV 



Game* Very htgh qu**tv 

• The Atari 600X1 « a repack egad varuon ol the 
Atari 400 w*tri a *man m* kayboard. Much of the 
published hteratura on the Aw 400 and 80G 
computer* i* the una. 



(continued on page 10 J) 



Se YOUR COMPUTER. DECEMBER 1BB3 



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A MZRWCHR/smtAS 
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LVL COMFUTERTWON OFFERS YOU ENTERTAINING. 
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WILL UNCHAIN THE GRAPHICS POWER 
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. £9.95 Rocket Raid £9 95 

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£11.90 Arcadians .„,. £995 

£1190 SUding-Block Puzzle , . £9,95 

£11.90 Cube Master £9.95 

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£1 1.90 Snooker , . . . £9.95 

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(including VAT) 

BOOKS 




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BBC MICROCOMPUTER 

MODEL A £299 MODEL B £399 (Includingvat) 





t 




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L: 




HCrt^ETrt TECHNOLOGY 

L-DOS 

The Complete Double 
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electron 




LVL Cornputertown Specialists will 
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\bur starter 

for £150. 




This complete starter pack for the price you'd expect to pay for a computer alone. 



It'sa complete computer system: 
the Commodore VIC 20 computer, 
a cassette unit, a simple explan- 
ation of computer programming 
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And all for just £ 149.99 or less. 

It's a terrific opportunity to intro- 
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computer in the world. 



The VIC 2D has educational pro- 
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arithmetic, etc. ), plus music, typing, 
chess and home accounts. 

There are special programs like 
Robert Carrier's menu planner and 
BBC 'Mastermind; and not forget- 
ting, of course, lots and lots of 
wonderful arcade games. 

You 11 very soon be exploring 
new worlds of colour, animation, 
and sound. 

Not just with a vast choice of 
programs, bu t with unlimi ted scope 
for expansion in die future. 

The VIC 20 is the perfect com- 



puter to start with because you can 
keep adding to it, and so get even 
more enjoyment out of it. 

There are printers, disk drives, 
memory expansion packs and many 
other peripherals to choose from. 

Which means, as your confi- 
dence grows, so can your VIC 20. 

Get the VIC 20 starter pack 
today, and we promise you'll never 
look back. 

ft commodore 
VIC 20 



YOU CAN SEE THE VIC 20 STARTER PACK AT ALL BRANCHES OF DEXONS AND WALLACE HEATON, AND AT SELECTED BRANCHES 

OF BOOTS, RUMBELGWS, LASK YS, CURRYS, GREENS, ORBIT, MENZIES, LEWIS'S, MAKRQ, TESCO. 

FINE FARE, WICFALLS, SPECTRUM, COMET JOHN LEWIS, WOOLWORTH, REDSFFUSION, COOP AND OTHER GOOD RETAILERS. 

ALSO AT BRANCHES OF A N ATIONAL NETWORK OF COMMOIX3RE COMPUTER DEALERS. 



I 

i 
I 
I 

4 
( 

■ 
* 
I 

I 

1 
* 



(continued from page 96) 

DRAGON 32 




SPECTRAVIDEO 318 



Price 



ri75 



Keyboard 
Av*lab»e memory 
Operating syttam 
LWTH correction 

EJTPC f DTTTlflt 

Editor 

Cassette interface 

Display outputs 



178*128 Hoot cotoursr 
Single channel through TV 



163 key*] 
25K bytes 
Typed entry 

No syntai chert on data entry 
Abbreviated enw 
Urn editor 

TV and monitor 



Basic 

£»panvon 

Graphics 

PUH resolution 



Similar ta Ihe THSBO Bhk 
Cenlromc* 6 cartridge port 
9 colours 
256.192 



Colour leaolution 
Bound 



Games Asa game* i 

superior to the TflS color 
computer in Quantity arid 
Cfuariry of game* 
• The Dragon * tuned on the TRS80 Colour 
Computer Being very tensa* . most written material 
i* rntercrunoeabte. Support on the buswtsss aide ta- 
in* Dragon may be OOTiioersbly below that of (He 
enter computer and whether the difference in once 
■■ autticieni to forgo such 11100011 « extremely 
doubdiH 



SHARP MZ-711 





Processor 
Keyboard 
Available memory 
Operating system 
Data correttnon 
Error lormet 
Gonw 

Cassette mterf »ce 
DucOy outputs 



Z 80* @ 35 MHj 

Reel keyboard 169 keys) 

37K byms 

Typed entry h function key* 

Fulr error men ages 
Screen ednor 
1200 baud 
TV video end RGB 



Cotewt resolution 

Sound 



light colours 
80*50 
80*50 
Single channel 



The screen resolution rs not 
sufficient fgr most arcade style 



Banc Ha* to be loaded from tape 

12 3 mtrmi 
Eipension Reer connector & Centronics 



Games 



• The MZ 71 1 take* a slightly rJrrfarsnf approach to 
the other computer* and has a butft-in primer and 
cassette drive The printer is the popular 4 colour 
pan drive mechanism, but unfortunately in doss not 
mm each pen on itart up 



Price 


1 M 


Processor 


z» 


Kayfaoard 


Rubber <swng keyi 


Available memory 


lascby 


Operating system 


Single ■ ' or typed keys 


Data correction 


Very gc screen editor 


Error format 


Full em Twaaagas 


Editor 


Screen tor 


Cassette interface 


1200 2 baud 


Display outputs 


TV and video 


Beak 


MS* banc 


Expansion 


Motherboard expander ft 




cert ridge 


Graphics 


16 cotours 


Pi* el resolution 


256*192 


Colour resolution 


64.48 132 sprite*) 


Sound 


Three channel* plus noise 



Games A new machine with very Irtile 

game* software avadeble m 
thr* country 
• TNs a ihe first machine 10 be SOW in Itu* country 
which use* the new Microsoft Basic MSX It 
operate* m default double precision numerals and 
aspire* one day to be abie 10 run CP M software 
With may of the mate* Japanese manufacturers 
aboui to tump on ihe MS* bandwagon We expect 
the lOW COtt 8 bit computer ma» market lo 
succumb by default 

'continued on page 103/ 



VOOR COMPUTER DECEM8CR 1983 1C1 



A 







Extend your 16k 

Spectrum to 48k for 
just£2300. 

And get a Free 
program wort h£4-50 

into the 



bargain. 




s 



ih.- manoal past < lui|*tir 24a mywm tow *i?*Hty»*»d t l< t^tts - 

,ih|i-vhr*i lnm.*nijniliiiilljttli>]tl<iv til. him h* n>'l tIt 

>mnbtn*"..liriu iittmdiNrt hou imuli sji.in iiwniniv is Mr .unit 
UM.thri..n, WniM»ieM*Wili«* |Mi^|r.miish*i- I InilMMi 



W 



SF48, 32K Memor y Extension with Pro gr am - £23 00 

Now our SP4Koff*rsev»n brnvt value 

Brtfluw now. we'ie not only offering you the I* ifity lo up-grade your 
16K Spectrum to 48K. we're j 4 you ihe opportunity to be able to 

, dirty emended memory quickly and easily 

For £23 all you rwed to do w plug the chip set H«o Iht sockets provided 
by Sinclair on your Issue- Z lor £% for issue ]J and you have a standard 48K 
Spectrum fully compatible with all Sinclair add -on* and wety low ui power 
cormirnpflon 

TherearKisokJenngrequiii 
>g and removal art 1 . 

And in* SPWearries our full warranty and a upgradable . on a part 
exchange basis . 10 SPHO 

Then at you need 10 do it LOAD our specially written 48K guid* 
program. Bevond Haruons'. and your 48K computer wiD guide you through 
it* memory 

With no need n.> labour through man nab 

Th» wtfl save you trine, because we all know how easy It is to get lost 
with memory maps 

SP80 Pag ed Memory Extension - £46 

Th» ingenious device gives a 16K Spectrum two memory hanks of 32K 
eachanda massive total of 8GK of RAM 

b can be used as a standard 48K machine . but pagmcan twswiriwdhv 
software instructions within your program The SIWObfKX recommended for 
absolute begmners unless used with 48 W) FORTH 

PttrJng. power consumption and Sinclair add on compatibility are 
m I aItoth*SP48 

Fit and Test service at our premises E3. by registered post £7 

48/ 80 FORTH- £14.95 

This new FORTH cornpHfr/edBo* is the latest best and meat complete 
vwsionnfFlC. FORTH for the Spectrum Each tape includes both a 48K 
version and an W IK vvr-won (Dot 1 target thai an SP48 can hepaflexchangad 
JotanSPSOf 

48 80 FORTH grve* you tfw speed or machine code with the 
programming simplicity of BASIC, ar>d is ideal for games writing Unlike other 
FORTH versions, all the Spectrum * i*ceient graphics commands are 



102 VOUR COMPUTffl. Of C tMM« 1 M3 



retained , and sound a st& avaaable using tit.l.P Cassette handling routines are 
■bo Included. 

"O FORTH include* a separate FOR TH editor wl 1 
RAM anlir were disc The 4HK version all) Muf a lt>K RAM d»H .mdlhvNOK 
v*twtonamaesKe.42K RAM disc" 

l£ SO FORI! vith a comprehensive user manual cnivrmg 

Nih compiler and editor. 

ZX SlowloadeT - £10 

This classic piece ot software loads 2X8] BASIC programs find jrr.ii,-. 
sttaight onto your Spectrum , ready lor SA Vting arid EDTTing It can if 
few minutes what would normally take weeks of keyboard time 

I A! products on tfws order torm are m stock at the umedgomg K> press Same day d.-vpaich 
far phoned Anas and Visa orders. 
lb East London Rofcews Lid Pbues«nd by «*utn IntkarmtrequiKdl 



D SP48nHwlC36l<bsua2(23) 

LJ SFSO|taMl£50MhiveaC46i 

D ^LdWUDADER U0 

n 8EV0WD HORIZONS" prapam £450. 



IK 80 FORTH E 14-%, 



Ptaaaji065p I encbM Achwtut POfor . 



-MvAcccti VlmN-;i n. 



II I 1 I I I I i I I 1 1 1 1 1 1 



EaaLon dtr iH u b u paUdGattll Royal Albert Dock London Lib 
24 Hour iniarmaton Service 



Tel 01471 i,KIK 

24 Hour Aodhi «id Va* onkmng 

leJ 014144715 

Trt 014744411 



EAST LONDON 



KDEDTIBS! 



t continued from page W J > 

BBC MODEL B 




ON THE 




GRID 



ATARI 800 



(399 



Pronator 


6502 e> 2 MHz 


Keyboard 


Raal keyboard i7* keys) 


Avertable memory 


9 2BK bytes 


Operating system 


Typed ontry with function key* 


Data correction 


Scrnple W uM fcf* •*«* 


Error formal 


Fui error messages 


EdHor 


Una editor 


Cassette interface 


- baud 


Drsplay Outputs 


TV video and RGB 


Banc 


BBC Banc with tHritt in 



Graph** 
Pur?) resolution 
Cokxir icwrution 
Sound 



Eight colours 

840 '256 

320-256 Ifpur Cohxinl 

Three chann*te 



Games 



A vary large volume of quarry 

eoflwent avaaaMe 



Centronics. RS232 rjrac eft 



• The BflC computer has been wich ua tor some 
iim« now and has made gnat in roads into business 
use Hi uh in the educational held * *ttc prriiy 
extensive. A vary (act version of Basic with a built -in 
assembler The machine to compare against for a 
low cost business machine WH have extreme 
drfiicuUv '" hording that position m >964. 



CAMPUTERS' LYNX 




Processor 
Keyboard 
Availa b le memory 
Opera ting system 
Data correction 
Error formal 
Editor 

Gesaene mterieoa 
Display output! 



Z80A@4MMr 

Rati keyboard 15? keytl 

14Kby**t 

Typed entry 

Found to be compKaiad 

Put error i 

Line editor 

1200 baud 

TV and ROB 



Graphics 
Pixel rawAinon 
Colour teaorutw) 
Sound 

Gam*a 



fight colour* 

256*248 

256 ■ 248 i eight eotaursl 

Single channel 



WW •iructured with duiit m 



Expansion 



AS 23? & paraiei ex pa rmon 
bus 



Not seen a* a garnet ma ch ine 
and vary little software 
avertable in itv* area 
• The Lynx has, from its *enw*t days, hatd 
pretention* of being a butmnu machine When ir 
tinaHy can run CP M software n writ have reached 
«t» goal. Untri then, the amount of aottirere for 
busmase purposea * Kmrted end espenarve For 
some unk riown reason , m»s compu t er was f eh to be 
more compbcalerj in operation than the others In 
it** review, 




titfif 

mill 



□ ATARI 




rVHOHJSS rfa\-RAM 



• * ■CZSl 




Phot 



1249 9? 



Ptocotaot 


6502B@ 1 8MHi 


Keyboard 


Rr*! keyboard <6T key*} 


Available memory 


3BK byte* 


Operating system 


Typed entry 


Data correction 


Each line syntax checked On 




entry 


Error format 


Error codes 


Editor 


Fui screen editor 


Caaaatta interface 


Require* an Alan recorder 


Oapiav outputs 


TV plus video 


Basic 


A very good implementation in 




today 


Cipantron 


Catmoge ports 


Graphics 


16 colours 


Pixel resolution 


320-192 


Colour fxrsoiutKm 


160 ' ISO (lour colour*) 


Sound 


Four channels through TV 




tpeeker or Ini 



Games Very high quakry but 

expenahre eofrwere 
* The Atari 800 nee been around a long rime and , 
wel thortrw be superseded by <h» B00XL Whether 
under that* fjrcumsimncas ma rnachrne should be 
bought depends purely upon the level of dtseount 
aveaeWs Remember to add the pnc« of an Alan 
recorder to ma coal of a system 

{continued on next page) 



YOUR COMPUTER, DECEMBER 19B3 103 



iCOfflifHMfd from pi&vtUUS pSffB) 

ACORN ELECTRON 




Poce 



Processor 
Keyboard 

Available memory 
Operating tytl*m 
Data cOmjctrari 
Error formal 
E#of 
C Mailte ml*«iace 

Dtapftrr outputs 



f?29 

MOS66I0 IGSQZ compaiiblel 

Re* keyboard 166 keys! 

36Kbyte* 

Typed entry 

Simple lo uw screen eoNto* 

Fui error nwH|pi 

Screen editor 

Requires a CAM cmnn unit 

TV end video 



Colour rMoiution 

Sound 



t tpniasl 



EjUMfWDD 

Graphics 
Piaei resotunon 



A rather 
Mi 

Serial port 
T6 colours 
320*200 



nafliuf"! of 

eartfKtS* port 



Got** As the pne* or the '64 4 

lOwthXJ, it breeder* itt be** 
and come* more into the 
grw market 
• The ixg brother to Ihe million nfcng Vc 20 ts tot 
OOwfl by m 1hthI«1 vwp*on of Bwc Cart be 

interfaced to » primer, **t rjrrvw wk) fitted with 4 
CP M option, the CommciOore 94 « supported by » 
reasonable ttwary of buw**» software. 

MINIMUM BUSINESS SYSTEM 
Commodore 64 T229 

DncDtwe (229 

Punter f290 



Qfi|fHfi 
P«x«i resolution 
Colour fMohition 
Border 
Sound 

Gamee 



Average rrnptemenwtioin 

Edge conneetw. Centronics 

IrF 

fiflht colours UDG 

240*200 

80*200 ma* 

black 

Three channel* pais neJee 



Quaiiiy toltwere beconma 

■toMbta 
* The One, i*e the Spectrum, does not hew ■ 
copoef keyboard but does have a spate bar At 
launch several peripherals were promteed which 
must soon be available? Speed printer - « iha the 
MCP4Q ar 1 2 character* see m»* - One mfc»o 0*K 
and communications modem, Humour has ■! rhei 
One are about to relaunch with the onginei i 
ROM corrected 



l«rrormvj 



104 YOUH COMPUTER DECEMBER 1063 





ft ootnc UtHTHC of ^rlii pcnw Md 
/dHlruchwMM. t* Datfi CruaW %ux ii*uili3 
n«itft*t»i«oid»*»nd"giti*9itacbCDomao»»of 

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•upar mtactnt Craad a' t 

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n *Hteh H» wwm ™* «Mnm paMU oi tout 

WCWMHWi W Stwelnim 100% H«eM>tCofl» 

iudtidw * Uinwnoo«ir*fMgnpiic •ni™*dn 
* t t~" t *r'* t " v "-t"*— - ■ *~t - ■—■->—-— 

wucqux* n**n«* gwwawnc h oft*! *»<nq * ^ icon 






To NOBLE HOUSE SOFTWARE 29 KJnflbfUdt T^rmo*, (nvemew Scotiam 



Please send me 



Death Cruiser/s 



^$m$ 



AdCtrM*. 



Signature 



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\*KkM *C*i«Quf/*FO (WV*3»tto NOBLE HOUSE SOFTWARE: 
*Dato» u appucab* TRADE ENQUIRES WELCOME 



W06t£ HOUSE SQFTWRE 

Inverness 
Scotland 









THEM IS \ vi rv large and bewildering ch 
ol printers available for ihc computer hob L 
tad not a great deal of published 
regarding the hi nf ihc machi 

specific tasks, tl n not possible to look at 
the combine computers and p 

but 1 hope to give j cuiJc as lo what can 
expected from printers in each pnee brack 
t have alto highlighted the points that 
user should c w hite when Lomenipbt; 
purchase of a printer The factors will 
weighted differently depending; upon whetr. 
the require J use a business* educational or 



David Home with a quick 
guide to the best printers 
on the market. 




toe VOUR COMPUTER. OECfMBFR 1983 



hobby i jr. For this reason I have simply stated 
the advantages and disadvantage* of each 
approach. 

The machine* reviewed are all very good 
value for money and hive been chosen on the 
basis of offering the most facilities within a 
given price-bracket , 

As a general introduction it should be said 
l hit ideally a printer should nave both 
Centronics and serial interfaces. It U logical 
that as the number of homes with more than 
one computer increases, whether it be one 
computer per child or jusi a spare computer, 
That each computer should be able to share the 



expensive peripheral devices that are used 
infrequently. 

The annual/biannual cost of upgrading your 
system can be significantly reduced by 
purchasing a primer with the common 
interfaces — RS 2)2 and Centronics, although 
just as the last few years have seen an 
enormous expansion m the areas in which 
home computing is used, the same is about to 
happen to the printer, 

What this actually means is do not buy a 
badge-engineered product if it has reduced 
facilities j,c, either The RS-232 or Centronics 
interface removed, unless there are 



overwhelming financial reasons for doing so. 
It could provide a limitation on your future 
choice of computers. 

The two current main uses of a printer are 
to obtain listings of a Basic program and to 
perform word -processing activities. All the 
printers are suitable for producing listings. 
Some users may like wide listing paper so that 
comments may be added to ihe right of the 
relevant lines of Baste, but usually these would 
be added as Rem statements. 

The reason normally given for adding 

comments separately from the listings is either 

I continued on page fO$) 



TANDY CGP-220 




SEIKOSHA 700A 



i.s'l ) ♦ . 


£ . -Obf ^ 


<: : 


" tft' 


78 5ef hi 


u£ d€ fit 
* PGRSTU 






i »ft| f 


1 


i 


■ 




t t 


1 p 


> ■ rV.f ■■ 


!J Lm-'OPQ 


- • , i i i 






b 


lI 

fsh }k IftTto q r 


i- $ 


(!) 


tftfXDE 

■ • * - 






Pnc* COS 




Speed cherveac 


37 


No. cnanyi'fw 


■1 


Tvpeot p*P*f 


pWn 


Piper width 


8 


■■OfltTl 


135' 


No tut* 


— 


CON 


£9.95 '3 


Cc*t of 




Irtfc cartridge b>w 


£6 95 


col. 


£9 95 


^ ' ■ ^ - - - - .. ■ - 

rTWT. cepepeny 


yes no 


Upper 'lowercase 


** 


OwptlM 


•* 


Screen dump 


•* 


Colour 


•*■ 


INTERFACES 




R5232 




Centrootct 





A vary high quati iy 
7 -colour Ink jet prmlw 
capable of eKceoeni (•m 
and graphics perlor 
manee Very easy to toad 
and unload ink cartridges. 
wh«h can Quickly- be Mrt 
'off ' tor long period*, of no 
u« Qu«t in operation 
The character Hi « m 
two pans with the 'ngn' 
m what is called ihe 
'European Ml' m CHGHI 
(1531 Cotowt resoMiori 
w 320 putt* ■cross ihe 



although ihe dot 
reaotui«fi « 6*0 because 
the colour* tend lo mm 
Each ink cartridge >% 
avmeiem lor about 9 roll* 
of paper. Centronics end 
cartel imerfecfle 
CONTROLS 
CHR» 10 brwtaed 
CMRS 13 Carnage Return 
CHR* 19 Hll image 
flrtphic* 

CHRI 28 Hapaat 
commands 
CHH» 30 Em on image 








, <: — :> ' 


. . j .=> -t 




<?* 


*i*+&C 


|r~-S9*-t O/XWaC C 


#^^tJklr>irio»>arftuvwx«z<: >- dt 

■ | 




' • 






Pr.ee £725 - VAT 




Speed chart tec 


39 


No chen.'lina 


100 


Type of paper 


pa* 


Paper width 


10 


length 


11- 


Mo, this 


9H" 


cost 


f 16 to- 2 000 theatt 


Cot) of pans 


N/A 


ribbon* 


am 


Punt cepeoAiy 


yes no 


Upper ,< lowercase 


•* 


Graphics 


p* 


Screen dump 


** 


Colour 


•* 


INTERFACES 




RS232 


p* 


Cenlrontce 





A very nice looking coioui 
printer that ha* the abJrry 
lo produce colour acreen 
copies Each pm«l if 
ootour arjrtrweiila- There 
« sofr we ri control ow 
formfeed end bieapeoe 
Centromc* interface orrfy 
Thera m a copy command 
tor screen dumps. When 
ihe optional rwrra screen 
dump board m imtaned 
Doe* not appear aa no**y 
at the two teas expensive 
S«koshae 



CONTROLS 

CHHs to Linefeed 

CHRI 12 formfeed 

CHRP 13 Carnage Return 

CHRI 14 Double wtdih 

character* 

CHRI IS Standard 

characters 

CHHS 19 Mm atari 

position address 

CHRI 20 CR without LF 

tOGtl 

CHR* 27 ESC command* 

CHRI 28 Repeat 

commends 



TANDY CGP-115 




jm^jLav.ak as. »V aVl-L aBaaLJA.JMjaLa>. e ■ em* a*_BL^at^. 

^fiBCDEPGHIJKLMNOP 
£jb«:defghi jl^laifio] 



DRSTU »*%&' I J »+ 

1234-S6789: ; <- 
ORSTUUUXYZ CV3 
qfsiuvwxyzcu 
6CDEFGH IJKLMN 
. -- ^01234.S6"?a 

nnnn 



PrceC1«9 




Spaed cnare -'aec 


12 


No Chan-hoe 


SO 


Type of paper 


plabi 


Paper wkhh 


as 


kancjth 


150' 


No shtt 


N A 


COat 


ca.99/3 


Coat of pen* 


ElJkVI 


rtjtoon* 


N A 


Piinl capability 


yajt no 


Upper lowe/caea 


r* 


Oaohics 


r* 


Screen dump 


* 


Cotoy 


r* 


INTERFiffS 




M3S2 




Cemroniea 





A colour pomer ihan has 
wtuaty become the sien 
derd. m many different 
sedge engineered forma, 
Capable of Ngh quattfy 
plotting and of acreen 
dump* in colour Low 
none level end very good 
quality print but t trifle 
alow, Has limited 
capability ot setting 
dill«r»nt print pari ■ 
malar*, I.e. C*rr>aga 
Return or Carriage Return 
and Line Feed 



CONTROLS 

CHRf e becMpece 
CHRI 10 line teed 
CHR1 11 Ri-venM linefeed 
CHRI 13 Carnage Return 
CHR1 17 Sat text mode 
CHRI IB Set graphic 
mode 

ChRI 29 Chanoa odour 
There n aan a ranoe of 
convora m DrapNca mode 
to enabej the printer lo 
operate aa a four -colour 
planer 



VOURCOMPUTER DECEMBER 1993 1(J7 



i 





ANIROG SOFTWARE 






8 HIGhT'STREET, HGRkEY/ SURREY 

24 HR COEOIT CARD SALES HOBIEY (02934)6083 

AYMSflT BY CHEQUE, P/0>, ACCESS VISA 

^ 50p post St packaging 



MISSILE DEFENCE 

Brmg&th« well known arcade game lo life on 
the Spectfum screen in glorious colours. 
Defend your cities from the missile attack 
and smart bombs 10 skill levels 
KB/JS 16K/44K £5,95 

SLAP DAB 

An exciting gamr based on the arcade game 
Painter which combines fast action with 
Strategy, (jianl insects hiding under Ihe old 
pamt surface are released by your paint 
brush Vou require fast action and quick 
thinking to outwit them and finish ihe panel 
The game is 100 pet cent machine code and 
HI RES Graphics also includes Hi -score and 
running score 
KB/JS 16K/4SK £5.95 

GALACTIC ABDUCTORS 

A stunning action packed game with superb 
large animated graphics. Giant £pac*> 
Hawks whirl and weave in intricate patlmns 
as Ihey drop their deadly homing mines 
which will destroy your base an coniacl 
While you are busy defending yourself Ihc 
H iiwks wi II feed on your helpless popu I at i n n 
returning only I heir skulls All M C game 
complete with high score table thai will blow 
your mind with its graphics and sound 
effects 
KB/JS 16K/4BK £5 95 

FROGRUN 

Popular arcade game All machine code wil h 
brilliant colour graphics and sound effect 
Features include snakes, crocodiles, lady 
frogs, turtles, cars, lorries and logs 
KB/JS 16K/48K €5,9$ 

TINY TOTS SEVEN 

Super games pack for younger children wif ft 
Imght colour graphics and Sound rffact*. 
Everybody'* favourite Simon plus Super 
Snap O's and X's. Word Jumble Bomber 
Duck Shoot and Mad Drivers. 
KB 16K748K C4 9S 

AVAILABLE SEPT. 1983 

KONG KB/JS £5.95 

XENON KB/JS £5.95 



TRADE ENQUIRIES 29 west hill, dahtford, kent, (0322) msis 



tconrmued from page W7f 
program security — h makes it easier for 
someone else to follow if a program is 
correctly annotated — or thai the comments 
can be written in a different colour and 
therefore stand out much better, enabling the 
reader to gain a bet let insight to the workings 
of the program. 

With ihe limited memory available on many 
machines, the use of valuable RAM working 
space on formatting neat program notes for 
easy reading — if it is not neatly tabulated it 
will not be very easy to see the remarks — is 
not something that the user will usually 



BROTHER EP-22 






There is a uer* lars 
conn»ti1er hobbyist and 
suitability of the »ac 
at all the combinat jor 
9uide a~ to What can t 

I haye also highligh 
contemplating the pure 
di f-Ferently depending 
educational or hobbv 
adyanta9es and disadvo 

The machines reviews 
chosen on the basis o^f 



Pnmtno 

SpMd CtMTV/Ml 
No. chart ime 
Type Of paper 

Paper width 
length 
No *r*ll 
CDftt 

Cent of pent 



17 
75 



N A 

ttf&tor 100 

N A 
fS 70 fof 5 



Print capabrirhr 


yaa 


no 


Upper.' Vim irria* 


■■» 




Graphic* 




** 


Screen dump 




>* 


Colour 




■" 



INTERFACES 
Cintronic* 



A eortabWj printer that 
can bi uied it a 

Typewriter a calculator 
ami » a word processor 
capable of ttoring appro* 
one peg* of A4 i*n with 
the do>w twitched off, 
Currently the cheap"*! 
'w*de' paper pnn(*r I 
would have bked to uMit 
to enter data mmo the 

computer but nono 

t betas* a vary good 
printer. The hay* are a 
in Ha "light " with no 



contemplate. 

The advent of the very popular four-colour 
printer plotter enables the user to provide his 
own listings with remarks coloured for easy 
viewing. Inserting a pen which has run out of 
ink into the appropriate colour pen holder — 
you must not run the mechanism with a pen 
missing — will provide copies without visible 
remarks. It took me ages to think of this use 
for an old dried up pen. Waste not want not. 

For word-processing the needs of the 
enthusiast are not the same as the small 
business. Generally speed is not that 
important as the quantity of processed teit 



will be small. The requirement for an A4 print 
is also not quite such a necessity, as it is just 
possible to get away with less. For instance, 
sending text to a magazine in 40 column 
format will generally be OK as that i> how we 
prim it. 

Accepting that narrow text is in certain cases 
permissible, it should only be considered as an 
interim solution until finances permit the 
acquisition of a A4, 8 inch wide paper, printer. 

Another consideration for word processing 

systems is lower case descenders. This is the 

portion of the printed character that is below 

i continued on page ttt) 



ZX PRINTER 



audfefe feed t*ch The IB 
Character LCD display 
thews what it being 
typed m and allows a 
meaeure of ten 
correction Thi» if a «** 
concept m printer* The** 
ere no tower case 
deecandeti, 

CONTROLS 
CHRI B Backspace 
GMRS 10 Linefeed 
CHR1 13 Carnage return 
lea •elected) 




1110 II* Y-F<© 


OR V- 


GOTO 1130 






1120 PRINT 


RT 


Y-F,X 


1) ,X; 






1125 IF PEEK 


(PEEK 


ODE ■■O" THEN < 


SOSUB 


1127 PRINT 


RT 


Y-CF + 


-F.X;" " 






1130 NEXT r 






1135 PRINT 


RT 


Y-6,X 


113& PRINT 


RT 


O/X; " 


11S0 PRINT 


RT 


Y .X; " 


11©0 LET FRsFR+1 


1190 RETURN 




1199 REM *+*****# R 


1200 FOR F= 


= 1 TO 5 


1205 PRINT 


RT 


Y , X; " 

m rf-n-» v 


-» *"i ■» ** Tar -vr . c 


■ , #» 




Moacao 






Speed chert /see 




so 


No chn.'in*. 




32 


Type of paper 




metsiliwd 


Paper width 




4 


length 




m 


No. aha 




N A 


coat 






Coat of pane 




HtA 


It I-; n n ■ 

nooone 




N A 


Print capebaily 




ye* no 


Upper lowercase 




1* 


Graphic* 




»* 


Screen dump 




»» 


Cataev 




«* 


INTERFACES 






man 






Csnlmnfca 







Probably the chMpett 

mm of producing hard 
copy output from a 
computer Special 

Sincl*' intertece prevent! 
>l» ui« Ail ho u I an 
adaptor on other 
computer*, et winch price 
you fhoufc! COnndei Other 
pTrmWi The frwatttad 
paper *tih m« of variable 
quality end can produce 
laded bend* of printing 
The accumulation of 
particle* irm3e the pfirrtat 



affect the drive logic 
leading to alternate brie 
off ten and rather p e cu l ia r 
character*. The punier it 
atao prone to be c ome 
noftv e'le* prolonged use 
The ao*d bar re* hold*/ a 
a useful accessory and 
help* in overcoming the 
inilia) (licking of the 
paper drive. Very fast 
COPY. LUST end 
L PR I NT Plot lino end 
user defined, graphic* 



NEC PC-8221A 



SV 



i»Ei LS . 1 



'W 



15 LET 






26 »?'"' 

aw Ltd I9«" 32 "I*."' '""you •** i 
p ^uasttofis '.o tit** Ihl* epiitt 

tea to tourp-ir*. ictil j~ *rintar« In ■! 

cases this ss not nic*ssar»; 
r>r«j ?H T t », , :fl i 2|,*t S 30 «u u«nt ', 
j»l tl* s^stta *.o *oijr »rmttr 1 '" 

CIS t **RIHT *Vou Mill br isteo soai 
eutltirjris- [f '.h§ antver if a # 

MINT T fi«inar, ^-fssirtt E**T£«J w ii[ 
enter ■„*>• LCtfault' value.* 7% ut* 
4736 31 IHPU T (*-oe tinv chai-aettrs 

iina coes noyr printer livt [*!■ 
Cit*l3I>:'P'). -INE if « LET u=pc 
it*l33>: 50 SUB :i»l 198 :- cti32 THE 
L5 : '»[«! "■(V««i» *r;*t*P IS J«d nir 

i»: paysl :5i ::i flegf st+:|3.jj '.Si 

: »?>" " fWBL CHBiflCTE? SET 
1 131 **tlHT "hot #1) prihttrs have 
ciaractar set Identical to thj 
tht Zx 5*a«trua, tnouih »ost' 132 
'art tit satr, 

•,", f . ana a. If 

k-spae* codt.* !3* 



n PiftlCuiir. c" 

SOtt or iMrM art 

use 4 stai + ar char-aettr, 

*\w Sptctrua uses 8 a *ht 

^wS !34 "E" i-l 27t >»'JT 

t COdt dot; nour prmttr us* *or hit 

LET *«vSl el 135 IF i<B 0( 1,235 Tl« 
TO 1H 136 *M e - ft^Ihil "39 CLS 
*-• T 3 2*J STE» «; FOfi ^ 
It t-xJCHiei (fi*325l*: 

KtXT „ :3I i*vpuT *thaf 
EN'I* iffifttshtd)' ' 



'■¥■ *» 



!|T c- 
K\ft+£);' 
HEH HEX T >* 
r to aadify *,ar 
lfi IF bi**' r hEH 
* Oft ofVa* r hH?N 
"Enttr ntH cotft for "rb«(I)1" 
UCODF. bf-32>;*:'' *)l INE if \ 
Hit. (si*C05E bt-32): SO SUB lift 
E£ st+COOt as-32,o: 60 *Q 1*1 311 
PBIMT * USlS-rjETTNfflBLE SBPFH 



illl BI 



r-f 



P E i 



Puce £80 
Speed chart /ate 
No. eh*™.' line 
Type of paper 
Papa* vmdin 
lengrh 
No. tht* 

cost 
Coat of pen* 



40 

ItbUllkll 

a 

is©- 



PhM capaOlity 

Upper /kmwuH 
Graphics 
Screen dump 
Colour 



no 






tNnnFACfis 

Cenlrc 



the 



Currently i he 
Centronics and 
ch*ao**i dot 
primar on the 
Exceptional va'ue for 
money. Run by four 
penfirjtH beiiene*. or a 
mam* adaptor Limited 
paper width of 3 inch. 
Very quiet in operation 
end compietarv portable 



CONTROLS 
CHR* 10 Ltrte feed 
CHRS 1 3 Carriage return 
CHfts 14 Double sue 
printing 

CHRI IS Standard 

printing 

CHRS V ESC Used io 

produce uaef defined 

graphact which may be 

16*16 pixel* m we 



YOUR COMPUTER fXC£MB€H 1983 108 




Very clever 
machines 



SPECIFICATION 
Executive quality 
daisywfteel 
I?0w0fds pef minute 

Parallel or Serial 
B8 charade* ASCII 
ID ot 12cha«spaong 
Pipe* width I J* 
Easy operational u» 



STAR DP 510/515 
5i0-£235 

+ VAT at £35.25 
r.r.p,a89 + VATaU43.35 

SAVE £62 JO 

5l5-£285 

+ VAT at £42.75 

r.r.p. £399 + VAT at £59.85 

SAVE£I3U0 



SPECIFICATION 
12 chars »r second 
WASClkhars 
10 v 12 char spacing 
Sena! or oaralle! 
Simple operate 
CwredingTape 
Automatic rdacation 
5 5"H69"iW2- 






SPECIFICATION 


f 


CM Malm pnnter 




Parallel interface 


T$m 


100 chars per sec 




Fricttw and Tractw feed 




2 3K Butler 




Bidirectional logic 


M .' 


9 1 9 matrix (descenders} 


/ <2fc P /J Italic prmting (96 ASCII} 


vSV nU ALt, ° underlining 




5 3*xl5.rir.lZ,r 


7 


5 3" x 21 3" x 12.1" 



65 Falstones 

Basildon 

Essex 

SSI5 5DF 

At silly 
prices 

SMITH - CORONA 
TP-I 
£299 

plus VAT at £44.85 

r.r.p. £485 

+ VAT at £72.25 

SAVE £2 1 3.90 

THE COMPUTER PRO 
PROMISE 



Computer Pro is 
owned and run by 
electronic engineers. 
We test and evaluate 
ttte equipment to 
emurequality- then 
we negotiate the best 
possible price. If you 
can buy cheaper— 
we'll refund the 
difference. 



STAR stx 80 



SAVE £23 



SILVER 

REED EX 43 £249 

* VATut:]7}5((rnifonkiin[cHtaf £W I VAT 
at 1 14 65, RHH micrtict f 109 + VAT Jt < 1 6. 35) 
t r.p.t~J25 - VMjt«8 7S 

SAVE £87.40 







HOW TO ORDER 

Just send a cheque with your order to: 
Computer Pro limited, 
Department YC, 
FREE POST, 
Basildon. 
Eswn SS I S 4BR Tel. (0263) 4 12545 

* Don't forget to add VAT, 
*N Don't forget to add £ 10 for ucurkor carriage on printers 

and 1 1 for other items. 
*£ Don't forget to specify interface required- 

♦ IEEE to Centronic con vectors available for Commodore 
64 and VIC 20 at £26 + VAT at £3.90. 

ALL EQUIPMENT CARRIES FULL MANUFACTURERS 
L WJM«ANrrY_ 



BASFSSSh 

Each disk individually 

certified. 

Available until 1st January 

1984. 

Packs of 10. 

s. sided s/density £ 1 2.95 

s/sided d density £ \ 5,95 

d/sided d/density £ 1 8.25 

sAided q/density £ 19.95 

d/sided q/density £22.95 

+ VATatl5%(>ostand 

packing £ I per pack. 



SPECIFICATION 

Thermal printer 
60 chars per sec 
Parellel or senai 
BxSdotMatru 
SO columns 
& -direciwftal 




FREE! 

THE 

COMPUTER 
PRO 
CATALOGUE 

Write for our free catalogue 
giving outstanding value on 
ZX8 1. Spectrum. VIC 20, 
Cc*mmodore 64. Dragon 32. 
ORIC I . Atari, Texas Tl 99/4A 
and BBC micros and software 
Complete listing of monitors, 
disk drives primers, cassette 
readers, books, all peripherals 
and accessories. 



1 10 VQUfl COMPUTER, DECEMBER T383 



tconhnuad from page KB) 
the general base level of the printed capital 
letters i.e., i he lower case letters g f j, p, q and 
y, If these sit up on a. line the text can become 
difficult to read, with problems m 
dirTercTUiatiiiK between (he g„ q and 9, 

All the printers will work within a normal 
office environment without creating a 
significant noise problem, but the dot matrix 
printers and the ZX prime t can cause a 
disturbance in a domestic environment 
especially late at night. 

[n this respect the ink |et and thermal 
printers arc the m-ost suitable, but clear tv Jo 



not have the capability of producing multiple 
copies from multi-part paper. I know a\ 
obvious but with the colour matrix printer, 
onJy the original is coloured, the carbon copies 
are black and white. 

One of the main uses to which printers will 
be put in the very near future is electronic 
mail. Messages can be transmitted to suitably 
equipped sites at 1200 baud, usually at less 
cost than posting a first class letter, which 
should arrive the next day, or of sending the 
message orally over the telephone. 

Think of all the post that you send and how 
much of it could be serviced in this manner 



including the payment of bills using a credit 
card facility. It could be seen in today's climate 
as a way of greatly reducing costs in a very 
labour intensive industry. 

The development of electronic mail is 
dependant upon the advent of very cheap 
Modems, which are also responsible for 
holding back the demand for access to Large 
database networks. We really are very close to 
the electronic communications age, not just 
for big business but also the general public, 
wuh all its obvious advantages and sometimes 
not so obvious perils. 

{continued on rrtwf page) 



SEIKOSHA GP-250X 




pqrst-uvwxuz-t . >~ &&&&61 

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Ho chart fan* 
Type of mpr 
Paper width 
length 
Ho tfcti 

CDft 

Cent ol pen* 



M 

80 

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2,000 



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Graphics 

Screen dump 

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no 



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INTERFACES 
RS232 



A wy good Putin*** 
machine but not latfly 
■uilebte tor I he home 
where rhe nose and m 
■ (■nation may be a 
prototom Cow removal « 
rerjuMwJ to gwfi kcm to 
switch selectable 

liHKtW* including baud 



interface* Paper 
1 Md net vary hiv to use 
control aver prim 
. with form feed 



CONTROLS 
ChH» 7 Bell 
CHHS TO Linefeed 
CHRS 12 Formfeed 
CHH* n Carriage Return 
CHRS u Double width 

ChaWAGtflfl 

CHRS 15 Standard 

character* 

CHRt 16 Print ttert 

po*tien addfass. 

CHHI 20 CR Without LF 

IDC41 

ChHS 27 C SC commends 

CHRS 28 Repeal 



OLIVETTI INK JET 




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Speed chart/sac 

No Char»/hne 
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M 

132 SO 



No. fthti 
coil 

Coil ol »n* n 50 



N A 

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Pnnl capability 
Upper ■ lowercase 
Graphic* 
Screen dump 
Colour 



no 



•* 
■* 



INTERFACES 

HS232 

Cantfonioa 



A wery fan qu*i nit jet 
printer with manual 
control of ihe prim 
mlorttirv Capable of very 
high quektv graphics ) 
could not uat lh« rd peper 
•t the machine wn 
supplied without • Mi 
hand support bracket 

CONTROLS 

CHRS 7 Bell 

CHRS 9 H omental 

TehuUlion 

CHRt 10 Linefeed 



Cmr* 1 1 VarricaH 

tabulation 

CHRt 1 2 Formfeed 

CHRS 13 Carriage Return 

CHRS 14 Double width 

chanatiwi 

CHRt 16 Standard 

character* 

CHRt 16 Print start 

PtMJftHlrfT WTffrim 

CHFtt 20 CR wilhoul LF 

locii 

CHRS 27 ESC carnmendrj 
CHRt 2B Repeat 



TANDY TP-10 




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+ ..-. ^91234 

*+, -. /9123 

>*+, -, /012 

*+,-» /01 

fe'C )*+,-. 
< "#*X8,'< >* 



Price fBO 
Speed cherm/tec 

No crujri/lin* 

Type of pep* 

Piper width 
length 
No »ht* 

coei 
Coat of pens 



30 
32 



4" 

m m 

HA 

17 80 7 

N A 

N A 



rrtm capaoniy 

Upper vlowerc*** 
Graphic* 
Screen dump 
Cotoui 



ftp 






INTERFACES 

RS232 

Cenitonlct 



Currenrry ine cnaapatt 
RS 232 pnnier on marttet 
The quaJlv m emiremeiv 
good but limited lo 4 inch 
wde paper and 32 char* 
The prmling « very qutet 
*po»lt by • comparairwry 
norsy Une (aeri ratchet 



Graphics capebitity is 
limited tO quofler 

chaiecter tail tHocta. 
Thanj ant no km* case 
descenders in the 
character eat. Currently 
the bail prim quality lor 
under MOO 



ffolf rfidt af e'amptar aw acrueV m, The cost of 
tn* Setostia JWA featured pn page IQ? a mbout 
f-HQsnttnal {775 at mdrctttd OttmptK** ihoukt 
onV 6e fa*en j j a genera/ srow**oe 



VOUfl CG*»PUTER OCCEMSIR TflS3 111 



(continued from previous o&gei 

] hate to think what is actually going to 
happen ro the network when the 'enthusiast' 
gets hold of it with an intelligent terminal, 
with the new electronic exchange* I can not 
see how it will be stopped 

A printer uses whit is euphemistically called 
consumables. These affect the ability of the 
user to actually print hard copy output. In an 
office, if the printer runs out of paper, either 
to to the stationery cupboard and get another 
bout or get some from a local stationery 
stockist. 

It is not quire that easy in the evening at 



home, a hobbyist is unlikely to carry a large 
range of spares so it is worth considering what 
levels of spares is requited A ribbon can dry 
out if left for any length of time unused end 
exposed. In such coses, wind the ribbon back 
and forth to wet tt from adjacent inked 
portions of the ribbon. 

Always cap ink pens when not in use. If 
these run out then your stuck. Users of the 
four-colour printer mechanism may prefer to 
purchase replacement pens from a Sharp 
stockist who provides packs of four pens — 
one of each colour. 

Ensure that if the equipment » battery 



operated, the batteries have sufficient charge 
to produce a clear prim, otherwise use the 
main adaptor. As a general rule, roll paper as 
supplied Li less likely to contain creases and is 
also less likely to jam. If you use fartfold piper, 
there may be a requirement for a form feed, 
otherwise printing over the perforated tear 
may occur, which besides being difficult to 
read, creates a lot of printing noise. 

The space requirements of fan fold paper w 
much greater than that of roll paper behind 
the printer, think very carefully about how 
and where you inlrnd 1(1 Lnsta.ll yOuf printer 
It is not usually a problem , | 



SEIKOSHA 100A 



p 


-BM-iaaVr- * 


1 J 






ZC 1 - * abedef 9hi ik lumo 


ZC>3 -" •■_pqrstijLvwxsz< ! >* 


zc I . abcd»f9h 


1 .(fclttiTiO 


ZC 3 JNlrstuv 


* z < ; i ~ 


Z€ 1 _ etbcdefsh 


j .ikUino 


ZtN3 A _P<»rsfcyLV 


3 d. \ 1 f 


ZC D *"■- *abcdef9h 


i,ik Umo 


ZC 1 _P^rst'j.vuxyz< ! >" 


ZC -i 3 * _ 3 bedet 9h i J k lumo 


ZC\J^„P^rstu,vwxaz< ! >~ 


*hcdef9h 


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ZC \3 rt _P qrstuvwxy z < 


t»r\ T* - - K t- A f. £ 'J-d'. 


» i U 1 Mur,*-. 


fwrets 




SpHd oh*#*/aac 


U 


No tMm-Urm 


n 


Typ*6t p*p*r 


pMta 


Papar width 


* 10 


bffityltl 


ft/A 


No. aMa 


MM 


BOM 




Cotter pan* 




r«bbon* 




Prim capaMty 


fm m 


Uppw.'Uhvwfcat 


n> 


Grvho 


•r 


Scroan damp 


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»* 


INTERFACES 




RS232 


•» 


CaMPDfiaai 


r" 



On* of trw chMOMt dot 
main* pr<n)*r» with 
Ofiprwa capability* Can 
be uMd with two port 
paper lo produce carbon 
copies, tha top COW tlH 
K) ba ramoved la cj*n 
kcm loCRor CB.LF 
•wtlcfi Papa* teed nol 
wry eorr m nla n t, can ba 
upgraded tw H5232, Mia 
caia a n i rjbbona aaay ir> 
rata* AUKcfwacwaat 
may ba jud which outs 
lha C on SMI 3 toy No 



CONTROLS 

chri e aKkiow» 

CHRI tO Luwraad 

CHHf 13 Carnaoa Rwium 

CHRI 14 DoutMo widirv 

crwactm 

CHRI 15 Standard 

CHRI M Print »lAri 

CHftt 20 CR withoul LF 

IOC41 

CMftS 2T Hortrontal (tol 



Rapt* I 



CHRI 28 
command 




1 12 YOUR COMPVItER 0€CEMBEH 1063 



YOUR PARENTS DID THEIR BEST 
FOR YOU.. WILL YOUR CHILDREN 
BE ABLE TO SAY THE SAME? 






"Now, .I've got. two oranges in my 
left hand aid one irv my nght, how 
many«angesL..7 p 



In the last five years, the 
microchip has extended rts 
revolutrdnslng influence to our 
schools today. even the youngest 
classes take computers as much for 
granted as we did our wooden 

RULERS 

WfTH THESE IMPLICATIONS 
N MIND, GOOD HOUSEKEEPING 
SOFTWARE WAS CREATED, ITS AIM 
BEENC TO DEVELOP A COMPREHEN- 
SJVE RANGE Of CAREFULLY 
STRUCTURED EARLY LEARNING SOFT 
WARE FOR YOUR HOME COMPUTER 

A NEW WAY TO 
PLAY AND LEARN 

Designed not 
just by software 



specialists but also by educational experts. each 
package goes far beyond the popular image 
of computer assisted learm^g 

It provides a framework for 
you and your child to learn and 
play together it also encourages 

YOUR CHILD TO DISCOVER THE REWARDS 

of independence and concen- 
tration as he or she explores the 
program alone or wtth a friend 
Each package includes 
games but unlike most other 
software for children, these are 
neither trivial nor competitive 
They are designed to encourage 
leaamng through structured 
play. colourful eye-catching 
graphics of the highest quality 
and a variety of realistic 

SOUND EFFECTS 

YOU CAN ALSO ADJUST THE 
STEED AND DIFflCULTY OF EACH 
CAME TO SUTT YOUR CHILD OR LET 
THE COMPUTER ADJUST ITSELF 
ALTTOMATICALLY AS YOUR CHILD 
PROGRESSES. 

LEARNING WTTH 
MRT 

MR T, GOOD HOUSE- 
KEEPINGS LIVELY ANIMATED 
CHARACTER. WILL HELP YOUR 
CHILDREN EXPLORE ALL SORTS Of 




PREVIOUSLY DIFFICULT EDUCATIONAL AREAS NOW THEY CAN' LEARN 
TO TELL THE TIME OR COPE WTTH REAL MONEY IN AN EXCITING AND 
ENTERTAfrUNC WAY 

MR T WILL ALSO HELP YOUR CHILDREN COME TO TERMS 
WTTH THE WHOLE IDEA OF COMPUTERS AS AN INTEGRAL PART OF 
THEIR FUTURE LIVES 

THE PARENTS* HANDBOOK 

A PARENTS HANJDSOOK IS INCLUDED IN EACH PACKAGE. 
CONTAINING SIMPLE OPERATING INSTRUCTIONS AND A STEP-BY-STEP 
GUIDE TO HELP YOU AND YOUR CHILD GET THE BEST OUT OF EACH 
PROGRAM IT ALSO CONTAINS A WEALTH OF FOLLOW-UP ACTIVITIES 
FOR YOU BOTH TO ENJOY AWAY FROM THE COMPUTER 

YOUR CHILDREN'S FUTURE 
BEGINS HERE 

Put your home computer to worx 
for your children now send for your 

GOOD HOUSEKEEPING EARLY LEARNNG 

PACKAGES BY CUTTNC THIS COUPON 

llum wmiK— mi w ii i m mini nmntAMM 
Wuvvktw* «k uuc**ifi«Mi*prjii .- 
AM<u<rttJ»<cni*uttimi»<*«BKi4«iEtiwurii 
BBMrnown o» **k* hkh man htkuh 



hS*7«\ 




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Pit mM *-* Mi nm UNO HUUHUirm. 
taj*T»**| MOiCtrV tH it 1 rt»t nm.mb 


•OS I* 

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RfCJtmitJVilsoai 



GOOD HOUSEKEEPING S( M-TWARE EARLY I I ARNIN 



RjiL*V*r>f l«I"T W*TVMt 4 DfYTSOtt U 



*m v« HftM I* 



W.UM Ml *,AJ 






All over the country inn Christmas 
children will w»kc to find their stockings 
grotesquely bulging. Yes, Santa has brought 
them ■ nice Commodore 64 or a homely 
Vic-20 all the way from Greenland Or 
wherever it is he lives. If they haven't been 
broken on the trip down the chimney, then 
those children — and adults — will need some 
soft waie. 

If they are lucky they will have been given 
some of the belter program! from the wide 
range available for these two machines, But if 
(he mere thought of Christmas depresses you 
and the thermal underwear is not keeping the 
mid-wimer chill out of your bone*, you might 
like to plug in a program that transports you to 
the balmy days of summer. 

Hower Bower, from Llamasoft foi the 
CBM-64, will do jusi thai although, as the 
name suggests, there is not a lot of peace and 
goodwill around. The btsarre imagination of 
Jeff Minter has here turned suburban 
contentment into a screaming battleground of 
dogs, gardeners and ordinary old chaps. 

As Gordon Bennett you borrow Jim's Air- 
Mo to do the lawn thinking that "Jim won't 
mind if I borrow his mower." Jim, however, 
minds very much and comes raging after you 
to re-pones hi* machine. A* you try to avoid 
him you arc helped by your local hound, 
Rover, snapping al Jim's ankles to keep him 
away. But Rover does noi like the sound of the 
mower so you have to keep an eye on the Dog 
Tolerance and Dog Loyalty displays. 

Horticultural holocaust 

As you run away from Jim — or All" or the 
others whose mowers you expropriate — you 
must be careful not to plough through a 
flower -bed; should you do so you will bring an 
angry gardener onto the scene and this makes 
your job all the more difficult. 

Hower Bovver's graphics are excellent but 
it is the sound that particularly impresses; 
barking, snapping, screaming and mowing are 
all cleverly imitated while in the background a 
manic version of "In an English Country 
Garden" remorselessly grinds away. This 
clever game features 16 different lawns, one of 
them with a llama-shaped flower-bed. 

This strange obsession with llamas surfaces 
again in a Llamasoft game for the unexpanded 
Vic-20. This is an entry for the longest 
computer-game title of all nine compel man; 
Mctagalactic Llamas Battle At The Edge Of 
Time — hereinafter referred to as Battle. 

The extraordinary' blurb rivals Quicksilva 
for absurdity; in the struggle against the evil 
empires of trata and Zzyax only the 
"cerebrally-enhanced Llamas" are holding out 
at the "edge of time". Then opponents are 
"cyborg arachnid mutants" — spiders to you 
and me. The spiders descend on strings while 
the llamas spit at them. Should a spider reach 
the ground it will turn into a "disgusting 
weeviloid". 

If you move the force-field up and uown 
"expectoration may be aimed at many parts of 
the screen from a static llama". Make no 
mistake, these beasts can really squirt it out 
and the game is very fast and quite exening; ii 
is certainly good value for the unexpanded 
Vic. After the shoot em-up it's the age of the 
spifem-up game. 



TIME i 



H 



HI- 



SCORE 



JJU 



<C> 1982 COttnO&ORE 



ICS LTI». 



CBM-64/VIC-20 

SOFTWARE 

Pete Connors mows the lawn r battles with the 
CBM-64's Bits, helps Dicky the owl recover his 

diamonds, rescues Fay Wraye and puts England into the 
World Cup final — all from the comfort of his armchair. 




There is no spitting yet from Virgin though. 
lt has four new games out; Bitmania and 
Falcon Patrol for the CBM-64, Envahi and 
Creepers for the Vic-20. With Creepers Virgin 
seems, at last, to have produced a winner. The 
game induced in me some of the excitement 
and compulsion that Space Invaders once had. 

It is essentially a very simple idea, At the top 
of the screen are the aliens who bounce up and 
down stealing your energy supplies at the 
bottom. Your ship is to the left of the screen 
and can move only up or down, thus making it 
harder to hit the aliens farther away. When an 
alien has collected five of your energy units ii 
mutates into a vicious green projectile which 
comes weaving after you. 

At the start the game seems a little bland, 
even dull, but as the aliens gel more frenzied it 
really does become compulsive. The fterve- 
(anglmg sound effects enhance the appeal, aa 
do the crisp and uncomplicated graphics. 

Envabi is an interest ing idea, but rather dull 
in the execution. You have a helicopter with 
which you must protect a city, and the dam 
which towers over it, from invasion. If the 
alien munchers get through the dam wall is 
eaten and the city is deluged. Other invaders, 
preferring terra firma, make straight for the 
city. 

There is not quite enough going on or 



enough graphic interest 10 make l-'nvahi a 
gripping game. Fed up with the helicopter? 
Then why not take the VTQL Fighter for a 
spin? As in Falcon Patrol, where you have to 
protect your ground installations from attack 
by enemy aeroplanes. 

You have 100 missiles and a Defender-style 
radar si the bottom of the screen Periodically 
you must do a vertical landing in order to re- 
fuel, a trkk 1 never perfected si the enemy 
always comes at you iust as you settle. The 
graphics in this game are good but the 
landscape is a trifle monotonous — palms, 
sand and Hat topped buildings. Falcon Patrol, 
though, is an enjoyable version of a familiar 
game. 

At the heart of the micro 

In Bitmania "you are inside a data-bus 
within the 64 and battling against the neuron 
flow". You must reach the central core, 
defending yourself against the CPUs armies of 
Bits. These are opponents looking like baubles 
falling off a Christmas tree, Biimania features 
Centipede- like mutations and obstacles and is 
a colourful game, though its sound eflecis are 
feeble. 

Imagine'* Bewitched is a maze-type game 
although you would not realise it from reading 
the ridiculous blurb with its talk of death, 



114 YOUR COMPUTER OCCfMBEfi 1933 








Tap hfJ. Rat Race from Commodore 
Above Envattt from Vtrgrrt Software 



Top right: international Soccer from Commodore 



dungeons and limine. You have key* of 
different colours which you must match with a 
door of the same colour in order 10 escape, 
meanwhile avoiding the ghosts who resemble 
purpic tadpoles. Those who like maze games 
could find Bewitched, for the unexpended Vic- 
20, worth an investigation. 

The need to tee what lies on the next screen 
it one that all games players must have 
experienced. Zorgon's Kingdom from Romik, 
for the 8 K or 16K Vic, is a program which 
uses this need to the full. I will not attempt to 
convey the anguish I felt when 1 realised thai 
to tet screen two I had to get my man to the 
top of screen one not just once but two times. 

Zorgon's Kingdom has five screens through 
which you must endure similar agonies of 



frustration. Tbe first screen has ladders, walls, 
holes and rolling bombs; it is a mixture of 
Monsters and Krazy Kong. Screen two goes 
on to ropes, lifts and mutating octopi. And so 
on. The graphics are mi creating but not 
particularly exciting, yet the game has an 
appeal which makes it fun 10 play. 

Rormk's Atom Smasher, for the unexpended 
Vic, is Centipede for the nuclear age; you are 
in a "runaway nuclear reactor" and must 
shoot the protons building up around the 
central core, It is a fast and noisy game which 1 
found difficult to control with joystick or keys 
Melt-down was rapid. 

Diamonds are traditionally a girl's best 
friend, but in an entertaining and winy game 
from Romik for tbe CBM^b4 we see an owl 



and a spider battling for possession of the 
sparkling gems. Stephen the spider has stolen 
Dicky the owl's diamonds, and he does not 
want to give them back. 

Stephen, m Tact, is a curious spider since he 
seems to have only half the normal 
complement of legs. However, this docs not 
prevent him from spinning a tricky web which 
Dicky has to penetrate to retrieve his rocks. 
Dicky's (ask is difficult and requires the player 
to have quick reflexes and use logical skills and 
to find the best way through the web. 

If you are not a very wise owl, Stephen will 
come and poison you. Thank God I did not 
men his pal Cecil who appears on later pages. 
The moral of Dicky's Diamonds seems to be 
that you should never trust an arachnid with 
your icwellery. 

Behold the Pac-Man 

Zappy Zoob, also from Romik for the 
CBM-64, is disappointing in comparison. It is 
a dull Pac-Man-style game with an un- 
inTcresung maze and fuzzy graphics. 

Audiogenic's A Court try Garden for the 8K 
Vic- 20 takes us back to summer pastimes. It 
seems that the "future of English horticulture 
depends on you" as various mutant pests 
ravage your carefully tended garden. The 
game is, in fact, a good version of Centipede, 
very fast and with dear graphics. If mats 
murder is one of your hobbies, ihen this game 
will appeal to you. 

Amok, for the unexpanded Vic from 
Audiogenic, is a rudimentary game in which 
your little man must shoot or avoid the nasty 
green robots who have gone berserk. It is not 
the most exciting of games, but if you haven't 
got any extra RAM, what can you expect? 

Amrog has three new games for the CBM- 
64; Skramble, Kong and Hexpen. The first 
has all the usual features; the rugged 
landscape, the cavern, with yo-yos, the 
first balls and skyscrapers. The graphics are 
well up to standard and the sound is very 
good, especially when your ship is blown up, 
but sadly the game is terribly slow. 

Kong, too, is a familiar game. To Rescue 
Fay Ut'raye from the nasty, gorilla you must 
climb 10 the iop of the screen avoiding barrels 
and monsters. Later scrrcm. offer lifts, girders 
and conveyor belts, Your brave little man is ■ 
funny creature wuh a long wobbling nose like 
an an (eater's proboscis. This is an adequate 
version of an old favourite. 

Hexpen is not nearly to effective. Here your 
man Bert must paint each block of a 3D 
pyramid made of hexagons, avoiding the 
rubber balls and Coily the snake. The graphics 
are rather ghostly and Bert is sometimes hard 
to spot in this dull game. 

Quintic Warrior for the CBM-M is from 
Quicksilva and, of course, comes with a silly 
blurb, this time about the sixth sense, sinister 
crahmen and mangled mutants. The game 
itself is similar to Gridrunner. Mutants rise 
from the bottom of the screen and must be 
zapped . Along the sides are two lasers; if you 
are caught in their fire, then the game is up. 
Quintic Warrior is an enjoyable fast game 
despite the ordinary graphics and weak sound. 

From AVS comes a flight simulator for the 

unexpanded Vic, Flight Zero-One- Rve. The 

(continued on next page) 



YOUR COMPUTER. DECEMBER 1 983 1 1 5 



■ m m ■ »*» m* 



■ ■■■ ■■•***! 



m m * 



• « ■ ■ ■ ». 



■** * » • ■ ■ 



r**- 



amfe.? 



| Wowp Bovvff from Utrngsotf 

(continued from previous page) 
program require toti n( information 10 be 
keyed in and, therefore, lots of keys to be used. 
It licks a good display of the horizon and dots 
not stem to be worth the tune it takes to really 
master the controls. 

The road goes ever on 

The Hobbn is one of the all-ume best»*elters 
for the Spectrum, and now Melbourne House 
has produced a version for the CBM-64. Not 
surprisingly, ti t* virtually identical to the 
original. Based on Tolkien's famous book, the 
Hobbit allows you to assume the role of (he 
diminutive, but charming, Bilbo Baggin*. 
Your task, while looking after Thorin the 
dwar I, is to find the evil dragon and recapture 
the stolen treasure. En route you will 
encounter opposition — ihe evil Golluro, l foils 
and suchlike. 

Help might be available from the magician 
Gandalf, though you must be artful as he is a 
testy old wizard 

Each different location in the adventure has 
its own clean graphic representation. 
Melbourne House claims that character* in 
The Hobbit interact with each other and, 
therefore, that no two games are the same. I 
never got far. enough to really test this claim. 
Commands can be entered with more 
flexibility than u usual irt adventures, due Id 
what Melbourne calls "Inglish". 

tf you want to succeed it docs help to have 
read the book. The Hobbit is a superior 






■** *■■ ■ i 



i»h«m 



p * ■ ■ mm mm- 



r, 



*SffiT 




Dtcky 5 Diamonds from Romh 



adventure game which should be as successful 
on i he CBM-64 as the Spectrum . 

Commodore's new cartridges for the 
CBM-64 include Rat Race, a superior maze 
type game in which your mouse — or is it a 
rat? — must find the cheese. He or she is 
pursued by nasty red opponents who would 
rather cat him, or her, than the cheese. To 
throw them olTthc trail you lay down a Kent 
which will send them spinning in confusion. 

Also to be avoided are the black cats who 
smugly block your path. At the right of the 
screen is a radar display which shows your 
position relative to cheese and opponents. Rat 
Race's graphics ale good and the game is very 
enjoyable. 

The CBM-64's sound facilities are 
acknowledged to be the best among home 
computers. Surpassing even the BBC. This 
difference can be clearly heard in 
Commodore 4 ! Music Composer cartridge 
The sample tune can be altered to feature any 
three of the nine instruments lhat arc 
available. As the tune is played the notes 
appear on staves on the screen. The program 
will allow you to use the CBM-64 as a piano 
keyboard, again with the notes appearing as 
you play them. Creative users will want to 
compose, and this is one of the main purpose* 
of the program. 

Unfortunately, you must enter a tune by 
pressing keys A to G. rather than )usi playing 
it in on the piano kevboard as is possible on 
QmckMlva's MU-PROC lor the BBC. This 



slight criticism apart. Music Composer is a 
welcome addition to CBM 64 s software and 
will provide much entertainment, and 
instructor!, for those who use it 

Over the moon about this 

And so to the choicesi morsel on offer this 
Yuletide, Commodore's own International 
Soccer on cartridge, just slot it in and there 
you are; a hundred thousand baying fans, 
luscious green turf, supremely skilful players. 
This is undoubtedly one of the best games 
available for the CBM-64; the sophistication 
of the graphics and the control you have over 
your players arc remarkable. 

You manoeuvre only one player at a time 
but when you pass control switches to your 
player nearest the ball. So you can play a 
robust long ball game as if you have a soupcon 
of continental flak, one-touch football of 
delicacy and finesse. Either way, when you 
score a goal the toy of the players is 
heartwarming. They bounce back to the centre 
circle in slow motion jubilation, Match of i he 
Day style. 

Goalkeepers, too, are impressive as they leap 
for a stinging shot or dive bravely at the feet of 
oncoming forwards. 

International Soccer gives 100 percent over 
the full ninety minules T Brian, and is by far the 
best speaking simulation available for the. 
home computer. It is a two player game or,' 
if you prefer, you can play against the 
computer. 



Company 


PrOgrnm 


Price 


Company 


Program 


Prica 


Amrog Computn, 


Skrample ICBM 641 


f7 95 


Uamaaofi. 


Hower Bower 




6 High Street. 


Kong ICBM 641 


£7 95 


49 Mount Pleat am. 


(CBM 641 


C7.50 


Honey, 


He pert i CBM 64: 


£7 95 


Tedtoy, 


MetagaUtcoc Llamas 


£5.56 


Surrey 






Hants 
Guickstiua. 


Qumtie Warrior 




Audiogenic Ltd, 


A Country Garden 




Pilmeslon Park House 


(CBM 641 


C7.95 


PO BotSS, 


tVte£0) 




15 Paimeston Road, 






Reading. 
Bart* 


Amok IVic-20l 




Southampton 
Rornilt, 


Dicky's Diamonds 




COTTHTKXSof*. 


international Soccer 


r 15 or ten 


272 A/gyto Avenue, 


(CBM 641 


£6 99 


675 A|a* Avenue. 






Slough. 


Zeppy Zoo** 1 CBM-64 > 


Trading Estate, Slough, 




Berks 


Zorgont Kingdom 




Berkshire, SL1 4BG 








fVk-20> 


£6 99 










Mom Smasher t Vic 201 £6 99 


Imagine. 


Ffentic (Vie 201 


ttJSQ 


Virgin Software, 


Biirrunrt ICBM 64) 


t&M 


Imagine House, 


Bewitched 




61 63 Ponobefto Road 


Falcon Pair oi 


£795 


5 Sir Thomas Street. 






London, 


(CBM-64) 


£6,95 


Liverpool. 






W11. 


Envatvi (Vic-201 


£5.95 


Merseyside- 








Creepers tVTc-201 


£595 ■ 



1 1B VOLW COMPUTER DECEMBER 1 983 







_ r » i 




*$$i 



I ■ ■ k 



w J 




• f * 1 1 I J 

■ I r a * a n 






-W7 






BBC MICROCOMPUTERS 




BBC Model S 

BBC Mod*" B 
disc interface 
A/BFo 
Upgrade 



BBC DISC DRIVES 



inc cibi** utttt.'i*M A mawat incVAT 

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SwitChAble E»«W 

R*c«*oc*Dr.«40;aoi 

switcnsbio tMJW 
Atom I. VI 1Q0»E« pendens 

Dnwe CMS DC 

lOOAEipeiiiion MUM 

ACflffi'LVL 200k Twin Drive t3tt 00 
Torch 6Qf>DtjAl disc p#C* * 

Mh + ZM CMS « 

HltKhO" IOC* Microdrive 1 11$ 00 

BBC ACCESSORIES 

in* VAT 

Cesser^ Dec* tMM 

4§Cf n JoyVich* flSM 

BBC Cuicmiar Joystick IH9S 

BBC Luiury Dull cower CS 95 

Printer Cable-Parang tUOO 

Cassette Lead £2 H 

SS.'SD S 2&- dues 1 10 i> t1»« 

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70/?CH H4 VE THE PERFECT 
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SMALL BUSINESS VAT & ACCOUNTS 
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Atari fl«5 I2M 00 

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OriCASk * software tin 00 

Vic 20 * casf * tottwafe ttM W 

Commoddi e &* tzn 00 

Commodore 1*11 Disc Dfiwe t2M 00 

L C5N Cassette unit z«oa 



We can I posuc-iy list owaryinn j 
we iioch fling Snaun Ja«e or 
Barry They will be leased lo 
advise you 



A STAR IS BORN 

A low cost full feature 
quality printer 
Fnction & Tractor feed 
Centronics interface 
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Ma have tha <a rgett sloe* ol SotTwar* 
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power Bugbyto Computer Concepts 

Imapma. Uifimate OiiiCkSiiva 
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telepnone your Access' Barclays A rd 
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CARRIAGE AND 
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Micros Monitors. Printers,. Drives. £0 
Cassette oecMt E2 Booss- Discs Et 
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computerama 

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59 Foregaie Street, Stafford, 
ST16 2PR Tel (0785) 41899 

STOKE-ON-TRENT 

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ST1 1PD. 
Jel (07821 268620 



SERVICE 

INFORMATION 
CENTRE 




SHREWSBURY 

13 Caatle Gates. Shrewsbury 
SY1 ?AB Tat. (0743) 6C5ZB 



VCXJH COMPUTER. DFCtMBE R 1 98 3 117 



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high fertile DCrfyester base 



Asocular Longifudinolly 
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Close tolerance roBer* foi accurate 
tape tracking 



Long life silicone 
lubricated a^ie pins 




Low static leader 






La* Melton, anil state, corrugated ^a, 
dip pods, gr apNted for low friction *i 

winding, 

Retnforcmg ribs plus )or>gue ana 
groove Interlock 

Tape gufde for minimum tape wear, 
low f or Oue and low eft Of rate. 



Mounted pressure pod 



Mu-metai shietd 



For some time a specially formulated professional 
quality data tape has been available to software 
producers and duplicators. This high qualify tape 
has been specially formulated for micro based 
data storage systems. With the rapid growth of 
home computers and the unsultablllty of most audio 
tapes used in short lengths, it has been decided to 
make this tape available to the general public 
under the name of PIRANHA. 
The PIRANHA computer tape will soon be obtainable 
through selected retail outlets, but to give you 
a taste of the PIRANHA'S astonishing data 
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we are offering a limited number of PIRANHA 
computer cassettes at an amazing price. 




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i Please send the following DC 15 cassettes 

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I Packofanehundfedat£39.90 No. 
i plus£3,SOp&p 

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1 Name and Address (Block Capitals) 




i i »-rr»T»»-+F*+lt + f 



■ ■■■■■■ •■■■■■^■■^■■b iiBiaaii i I- 

.........Postcode 

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i Trade/Bulk Enquiries Welcome. 



1.1 ■ ■ I * ■ 1 ■ F I I F 1 T ? + f ■ fr 1 



OFTWEAR 



ZX Spectrum T VIC 20 Dragon 32 & now also 



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Whilif tunnallinaj umdarorou nd 
you mart itia kilttF molar.. To 
itay il ma you muit ihoot 
tham with your bow and arrow 
which only kii ■ limitad 
ring*, Thar a n a tim* limit 
on uch u) *«n and * quick 

timt wifi* you bortui poinn. ' 
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Thhl oil* ii i tally hwt. 
ZX SPECTRUM tftMSK £5.75 



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PERILOUS POST ^ 

Al tn* braya peatman in 
ttH van you muit croii TE 

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rinri la d*l<rw your , 
pares* to th» houlinf 
atliia. tot aetata ■■ 
pauollad by traffic 
warden* who will try *** 

and catch you, but you ' 

can run tham ovar it Vh 

you find a Minnow*. {II? 7} 
Eapandad man. KB/JS 
ANY VIC 20 CrSQ 



ORIC. I 



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Hioh tpwtd nwchtna coda rcaae* 

tenia with M-rat arepMca and 

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and matawi. Eapartdad Knwn, 
Joy rtica or kayboaad. 
VIC Ml Any I Otkf41K«J0 

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for tht draaoad Ort>, whkn you 
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morwtan, dkmrar traajaur* and 
try to ramarnbat you* routa to 
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garni lacility . 

ZX SPECTRUM 4SK DRAGON S3 
VIC 20 tBK £5 00 



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Stirtfak dam* In rajaj tarn*, 

M-rai graphic* r full c ajw m r 
•nd round *tf act*., conalant or 
acraan dupUy of galaxy map. 
I m p ran fa *can. thorf rang* 
MM and ttatui report. Or*r 
20 oomnwidt. 

ZX SPECTRUM 4SK tt£ 



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Sida 2, Thi itland, Porrtoan. 
VIC TO (Una* I 13.00 



MACHINE TYPE 



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pracioui rtonn, buy waaponi 

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may ba uppnjh#d in tha man* j" 

of • flama. Sara jairW facility. '" 

ZX SPECTRUM ASK DRAGON 32 "am? 

CBjOO I *C 





1 18 YOUR COMPUTER. DECEMBER T9B3 



©CD©®©®©®®®®©©®© 





© 




© 

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o)®®®® 

e 



ARE TOP OF 
THE CLASS! 




© 



, , AND WE'VE WORKED HARD TO BE THE BEST! Micro Power are 
an official service and information centre, and we are major 
suppliers to Government and educational establishments, and 
stock the complete range of Acornsoft and Program Power 
software as well as a wide range of BBC. Micro and general 
computing books. Our expert staff are always on hand to provide 
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Electron [Carnage £5) 
(Phone for availability) 

BBC Mode) B 

BBC Model B with Disk Interface 



IS 

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Microvitec 14" colour 
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343 65 
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Epson FXBO 458 B5 

Epson RXSO 342 70 

Epson MX80 HIF/T ., 399 00 

Olivetti Spark Jet 399. 00* 

Seikosha GP100A 229 00 

NECPC8023 373 75^ 

Parallel Printer Cable 15 S0~ 

Standard 10" tractor feed fanfold paper 

(per 1000) 9 20> 

Epson refill ribbons 

Epson MX80 Oust Cover 
Epson FXSO Dust Cover 




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TEAC 40 track ( 100*1 . . 228,85 

TEAC 40 track (2O0k> 424 35 

TEAC SO track (200k| 127 75 

TEAC SO track [400k | , 569 25 

TEAC 80 track double aided I400M 396 75 

TEAC 80 track double sided double drive (800k) . 71 1 .05 

TEAC CS55ES 40/30 track 100. 200k Iswitchable) 374 90 

TEAC CD55E5 40/80 track 200/400k tswitchablet 626 75 

TEAC connecting cable 17.25 

Acom 40 track { 100k) 264 SO 

Acorn 80 track double sided double drive [800k| 803 85 

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Shugart 40 track f 100k) 263 35 

additional drive for above H00M 163.30 



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Concept Keyboard ,,79 35 

Cable 'or above 20 70 

Acorn Joysticks (pair) ....,,.,. 13 00 

Canvas cover for BBC 3 95 

Vinyl co ver f or BBC 450 

Complete upgrade 85 00 

VIA chip 4 95 

Buffer chip LS244 125 

26-way connector , 2 45 

Disk interface {including fitting) 97 00 

Econet Interface 70 00 

3 C12 Cassettes 2 13 

3 C15 Cassettes 2 24 

3 C20 Cassettes 2 53 

SS/SD Diskette* ...288 

DS/0O Diskettes 4 03 

Wordwise 45 43 

View 59 80 

Speech Synthestset 55 DO 

Beebpen 45.94 

Kisho cassette recorder 19 95 

Acorn BBC Recorder 29 90 



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YOUR COMPUTER. DECEMBER 1 98 3 119 




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micron'nijHUi'i nidusiiv (tend to 
1983 w- ..niiuLMiii' i.ill in retail prices 

dkusnally ChrMiu.iv i- die time lot tbc 
biggcM price cud. bul since prices kne becti 
dropping ever titu'i- micros .ippcarcd, liow 
much longer and ho» n:uJi further can <lie> 
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cgmparuon, prices have already ttabiliscd, .ind 
will probably inaw slightly* bul wsih 
accompanying improvements in lacilitics. 

Most .ompuiei companici will be totting 

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increased market share. Hut quantity 

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have bought parti lor the teat. 

Ihc sak^s potential of any home micro- 

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pnee Hy September, the Christmas setting 

I muM be deter turned. Hrave — or 

blinkered — comp.uiav nidc to the regiUai 

price: nervous ones itan hnrftfmf ihc regulsi 

down, Provided the dejlers nan buy j11 

the nun u fact titer's slock ever y one*! happy, If 

the) do not, sonv Jiastic step* are needed. 

*>lT, I he hi di- m mover operations arc 



approached, people like Boots, VUI South and 
other multiple chain*, will often respond to 

.lit oilers I'he second siep is to beet up 
ihc ild' campaign The tUvtesr leading 

I V, bul the price hav in be paid, 
and i J?0.iXMi does not go too far these days, 

nmodore U.K, reckons il is heading for 
W per cent of ihc British market this 
Christmas, and has projected over O million 
on advertising 1*K to achieve it. Vt'ith a market 
ffTHTWfd at l >iH' million, Commodoie targets 
retail sales at over t I^Utmllioii, with aboui 5 
percent going io ihe advertising campaign. In 
practice when dealer discounts arc considered, 
actual sales are nearer i'lOO million, and the 
advertising portion is relatively higher. 

(continued utt page 123) 



VOUH COMPUTER DCCEWBEH 1983 121 







Ihr fnllmi 



1 1 mi Ian ■ i tii'.jm 

P.t] lu 

ijier SiillwaiT 




diiMt m lit 



I r.n1i ■ iu|uiit»-s u<h nmi'.%nK 
Km Butlrr tiiiilSl-U-17 HRl 



i n ii i 1 ^! i ii. f j bjii 



Birkenhi^i. Mt;iMvsiilr, 1.41 6KS. Tel n phone: 051-W7 Hiiiii. 



(continued from page t2f) 

Anyway, by Christmas Eve u b all over and 
some manufacturers shay Id live to sec another 
year. For many this price war will be The last, 
and hot enough fat will have been stored awaj 
to see [hem through the lean month*- The 
casualties can usually read the writing 4* the 
wall by mid-November , but will still go down 
fighting- 
There have already been some signs as to 
how :*>ugh the fight will be; Dragon Data has 
recently raised £2.5 million, reducing. Met toy, 
the parent company's stakes, to around 3 
percent. How many more hard times can they 
survive? 

Once this Ch rut mas is out of the way, we 
can all look forward to next, I will try a few 
predictions, but in this business any form of 
forecasting is usually inaccurate. 

For Christmas 1984 many of this year's 
micros could be hair-price. The Commodore 
64 could be £99,95, the Tandy Colour around 
the £100 mark. Sinclair'i Spectrum will not 
reduce much, say to £69.95, with Oric 
following. The BBC Model B must have some 
price cuts, though I am surprised it has held 
for so long V\ rule the big school purchases are 
still there, maybe it will slay at £399. Who 
knows? What nl the Electron? It ought to 
share its big brother's success, although the 
investors seemed cautious when Acorn's share 
issue was un oversubscribed. 

Many computers introduced 

Many of this year's favourite computers will 
continue through to next year, but numerous 
others will be introduced for nest Christmas 
However many new micros are launched, 
there is sure to be another olTenng from Sit 
Give. What will it be? Oft has the Sinclair 
Business Computer been suggested, but unless 
the price-poim is right, he has little chance of 
churning out the tens of thousands needed to 
ensure success- Business users do not buy mail 
order, or wail months for delivery. The actual 
specification of the business machine is still 
not officially released, although n;an> have 
published their predictions. If it is to be aimed 
primarily at the business market, it must 
include disc drives and a monitor as standard, 

Even Sir Clivc did not rate his new flai- 
scrccn TV as a computer monitor. Unless 
colour is required, liquid crystal displays have 
a number of advantages over the flat screen, 
but no doubt Sinclair can reverse this status. 
For disc drives is he thinking of the Spectrum 
Microdrives? If he wants a 16-bit micro to 
compete witht he T.RM-PC, he will have to use 
more conventional drives like the Sony 15 
inch units. For the home market, the 
Spectrum could be upgraded io include ihe 
cartridge and joysticks option as standard, 
with probably 64K of RAM. 

Many of the existing micro* wil see a new 
lease of life with some of the latest peripherals 
coming next year. One of the most interesting 
from the enthusiast's point of view will be the 
micro-disc drive, although prices .mJ 
capacities of the 5.25 inch drive will improve. 
] would still favour the regular mini -disc drive 
for a couple of years yet, although by then the 
"micro- Winchester" may be the norm. A 
combination 3.5 inch fwed hard drive and 
floppy mierodiic seems like an ideal 



combination for the business machine. 

Some machines will be expanding their 
RAM complement as the 64K-bit chips 
become cheaper. Surprisingly there is a 
shortage of many types of integrated circuit 
right now, with a potential supply crisis early 
next year. In the long term the situation will 
improve, but until then, most chips will hold 
their price, which will keep manufacturing 
costs up slightly, and encourage some designs 
Into custom chips rather ihan standard 
components, 

One market sure to expand in the next year 
is portable computers. This year saw the 
introduciuion of the Tandy Model 100, a 
revolutionary device with its built-in software 
and 40-characier-by-eighl-lirte liquid crystal 
display, and all working off four pen light 
batteries. 

A number of other manufacturers will 
follow Tandy's lead, with other devices from 
the same stable and surely prion will fall The 
liquid crystal displays will become larger and 
cheaper, mavbe up to a full screen Si*e of 80 
I This type of product is exactly what the 
Japanese manufacturers need. Taking existing 
technologies and making it cheaper, smaller 
and more reliable is their forte. 

The factory where Ihe Tandy Model 100 is 
made w one of the most up-to-date in Japan, 
with almost total automation. Small 
unmanned trolleys move components and 
finished items around the factory by sensing 
wires in the lloor. All the components arc 
automatically inserted, and then solder- 
dipped, before being 100 percent tested. 
Further stages of manufacture are rot.il l> 
automatic, leaving the employees to do only 
lobs robots can not do — yet. Nearly 300 staff 
produce the equivalent of five computers each 
per day. 

Telecom Gold Service 

The liberalisation of British Telecom might 
help promote the underutilised communi- 
cations capabilities of modern micro- 
computers. The introduction of ihe Telecom 
Gold service will give ihe business user 
freedom and security in setting up a system, 
and the private user a chance to use a nation- 
wide network for the cosi of a lotal call and 
minimal rental for his mailbox 

Telecom Gold is a service offering the basis 
of a sophisticated electronic mail network, for 
very moderate cost, and allowing various 
levels of communication outside the user's 
network. 

h user is allocated a user identification — 
ID — password. To tog in, the user calls a 
local number, and an auto-answer Modem 
answers. When the carrier tone is heard, the 
user switches to data, or inserts the telephone 
handset into the acoustic coupler. Rna Dm 
on it is all keyboard stuff; after entering the ID 
and password, the system prompts if any mail 
has been received since the last log on, 

"Mail" is messages sent from one user to 
another, or from one user to a whole group. 
Each message is time and date stamped, and 
can be coded for "acknowledge receipt" or 
"reply requested". After mail has been read 
and answered, it can be either deleted or 
stored appropriately. Many other features are 
available, but this is ihe basic concept. 




All that is required to use an cleciromc mail 
system is a computer and an acoustic coupler; 
a device that usually connects to the 
computer's RS-232C port and fits into the 
phone handset, so that tones produced by the 
coupler can be transmitted down the line*. 
I 'd like the acoustic coupler, the direct -connect 
Modem actually links on to the telephone 
wires, and can also offer auto-dialling and auto 
answer. 

These Modems, with the autodialling and 
auto-answer facilities will soon be sold for 
around £100 In (act, if the Japanese were 
allowed a chance they could be £29.95. There 
is nothing inside a Modem to make it £400, it 
is |ust quantity production that is required. 

An un publicised set of conditions hw RT — 
British Telecom — approval of integral 
Modems — actually it is BAB T not BT, but 
same controls — means itut unci I sample has 
been technically approved in the VK, BABT 
has to send one of us engineers to inspect 
the supplier's factory. If this happens to be in 
Japan, the cost can be quite extortionate. 
Considering the high-quality standards of 
man u fact ure in Japan, ihey do not have any 
problems convincing the BABT sat3n man! 

Over the past few years various types of 
alternate input device have been introduced, 
but none is a real threat to the Qwi 
keyboard. There have been bid pads; a type of 
writing pad that can decode characters written 
on it, the Micro writer; a one handed keyboard 
which uses combinations of five keys 
strategically located under each digit, and the 
latest one to crawl out of the skirting board; 
the mouse. 

Mouse on the way out? 

None of these devices has been particularly 
successful, so why should the mouse be any 
different? Who is Likely to pay around £6,000 
for rhc Apple Lisa and use only the mouse? It 
is far easier io press one key to indicate the 
desired function, then it is to locate it with the 
mouse. On a cheaper machine which could 
justify its price for one unskilled user, maybe 
the mouse has a valid purpose, but 1 believe 
after a short while the mouse user would 
prefer (o learn to type. The mouse cannot be 
used to enter strings of text so the user must 
resort to the keyboard for word processing 
anyway, t think that the mouse will become 
extinct in 1984, but what new gimmick will 
replace u, who knows? 

For some time now, there has been talk of 
standards for hardware specification or home 

{Continued an page 12$) 



VOUn COMPUTER MCfMBEH 1 9B3 1 23 



€ 



TODEWON! 



mm— 



MAST€r\SOFTH€GAM€ 




S€ARCH FOR THE UNIVERSE'S 
WHIZ KID G VID WHIZ 

Softek are scanning the known Universe for the greatest Whiz's, both at 
programming a popular micro and acheiving the highest scores ever on a 

Softek game. 

ARE YOU THE GREATEST WHIZ KID? 

Rumour has it that this Universe's greatest programmer resides on planet SOL 3, 

sometimes known as "Earth". Can you prove that it's true? Between now and 

Dateline 31.12.1983 A.D. Softek are hunting for this planet's greatest. If that's 

you then send us proof! We'll consider any evidence of your supreme ability! 

Send that brilliant new program you've been working on or the groundwork of 

it (which of course still shows its greatness quite clearly!). Softek will guarantee 

you 100% ASSURANCE that your copyright will be observed and confidence 

maintained. In January we will announce in the Micro-press who the Softek 

Whizz Kid is. If it's you then you can expect to be signed up by Softek to 

publish your wonder works. Even if it is not you, then there s a chance that 

you'll be offered a contractto write for Softek anyway - incorporating the 

highest royalties of any Software house together with worldwide distribution 

which is second to none! 

The Softek Whiz Kid will receive £1000 of equipment or software 

of his/her choice! 

ARE YOU THE GREATEST SOFTEK VID WHIZ? 

We are also on the hunt for the Galaxy's greatest players of Softek games. 

Have you got the highest score on a Softek game? Up to Dateline 31.12.1983 

we'll be keeping track of the scores you send in and if you've got the highest 

score on a Softek game then we'll publish your name in the New Year's 

Micro-mags and you'll get a complete range of Softek Software too! 

SEND YOUR ENTRIES TO: 

SOFTEK INTERNATIONAL LTD. 
12/13 Henrietta Street, Covent Garden, London WC2E 8LH 

Telephoned 240 1422 

Softek reserve the fight to determine that submissions to the Whiz Kid competition fill to meet a minimum quality, in which 

ease the competition will be voided. The judges decision is final. The above competition! are not open to employes of Softek 

International Ltd. or any under contract to them. No correspondence shall be entered into regarding the results of the competition. 



< continued from page t23t 
computers, giving the opportunity fin 
uifiuatc compatibility between different 
manufacturer)* machines. Some may doubt the 
advantages fo» such a move; .my constraints on 
the specification of j new model m ensure 
compatibility with the standard could mean 
thai the new machine has no advantages over 
us predecessor, except perhaps on price. 

Rut do we only want cheaper computers? Ii 
standi to reason that any form o! standard 10 
be introduced by the big man u fact urefs wit I 
have to be flexible enough to allow unfettered 
evolution, but retain a common core to uk the 
software developed m mCOH for the whole 
range, If the standards concert is thrown oui 
of the window - wtm.li I (eel is unlikely — the 
format of the next generation of micro 
computers will go the way l he strongest 
muscle decides. Ky muscle ! mean 
■ factum** muscle, not consumers' 
muscle. The consumer has a track record of 
trading machine performance for value for 
money, and often ignoring value tor money in 
favour of lowest price. 

In the business end of the marketplace, we 
hove already seen the might of IBM enter the 
ring with its personal computer. 

Nobody invited IBM. No, They simply put 
millions of dollars into developing a new | 
lM»ii micro, sought the co-operation oJ soti 
ware giants like Microsoft, and then used tl> 
considerable marketing clout to launch the 
product, 

Vfrhen the machine was first announced, 
many declared the hardware specification too 
unconventional, and wnh .1 new species 1*1 
operating system to overcome, the IBM was 
often dismissed as a non-runner More like a 
one-horse race, IBM needed penetration of the 
marketplace, an J software is ihe key in 
business computer marketing Quantity 
production is the key to software marketing, so 
with promises of huge sales of the IBM PC, 
software houses could not aiford the risk el 
missing out on this sector of the business 

Bui the race is shll on, Now (hat so much 
software has been developed on the IBM and 
its MS-DOS operating system, — called t't 
jX"»S on the IBM — other manufacturers are 
■Being the light jnd switching research and 
Ji-^elopnicnt funds to IBM look-a-hkcs Even 
some of ihe biggest names in the business have 
conceded that they must marked an IBM- like 
machine in their range. But IBM must not u 
around too long, cither, now ihat others arc on 
ihetr bandwagon, and if they want to stay ahead 
of the rest, they will quickly move on to greater 
things and lead the industry to the nest hon?.on. 

New Japanese standard 

On the personal computer froni, and K 
"personal computer" I mean "home or 
enthusiast computer", there is 3 move a&Ot to 
settle a new Japanese standard known » 
MSX The mam point being to standardise 
the software and minimum hardware 
configuration so that there will be 
compatibility of software between mam 
tfiflereirl home computers made by a range of 
manufacturers. This would suit the oriental 
producers because they could concentrate on 
churning out more and more micros at towgf 
and lower costs, If lower costs mean lower 



shop prices, and software compatibility gives a 
huge range of pa».kjgi.s. then what has the 
consumer to wort] about? 

We have welcomed standards in audio 
records and tapes; selecting the best and 
discarding the rest. Even ihnuph the 13 rpni 
record has been in use over 20 
considerable technological improve mem 111 
both ihr "hardware" and "software" has been 
achieved without changing the basic 
configuration. 

The consumer can slill buy the it cktOpO 
record player for a few pounds or spend 9 
figure sum on high-tide I it y stereo equipment. 
I'nul the compact digital disc arrived on the 
scene, the record was considered by most to he 
a suitable medium for their music. 

When the compaci cassette drove the eight* 
irack cartridge out, few tears were shed. Many 
advancements have been seen since in cassette 
technology, for instance, Dolby noise 
reduction, chrome and metal tapes, without 
leaving the original hardware owners out in 
the cold, or incompatibility t>\' the latest 
machines with the earliest lapes. 

Some competition in standards can be a 
useful ally of the consumer, as has been seen in 
video cassette recorders, with the two main 
standards; Retamax from Sony, and VHS from 
JVQ lliiachi ft &t Boih systems have quickly 
esobed in a degree now that not modi change 
tn hardware configuration is expected in the 
next year or so. 

If Japan succeeds with (he MSX generation 
of microcomputers, what will we expect 10 see 
for next t-hrjstmas? Not all the big Japanese 
names are yet convinced about MSX, and two 
of the existing computer manufacturers, Casio 
end Sharp have decided to go their own ways 
One of the first into the MSX Mm will be 
Maisushna, followed closely by Sony. Also 
led to iom in arc: Sit. Sanyo, I oshiba, 
Yamaha, Pioneer, JVQ Unachi, Fujitsu and 
Mitsibishs Retail prices for the MSX standard 
machines is projected to run from about £\ 30 
up to £MX>, 

Surprisingly, the Japanese government is 

not supporting the MSX system, as it feels 

there is still room tor technical innovation, and 

seitmg standards now will inhibit further 

ces 

Digital Research, founder of the world 
famous ClVM operating system for ll 
dist computers, has suggested to some of the 
Japanese manufacturers not already on the 
MSX road, a d liferent set of standards, bui 
keeping very quiet about it, 

Some of the software products available for 
ihe home computer range are now so rjj 
any form of siandardisjtion of hardware must 
help to 1n1.rc.1se the software library tor each 
machine. The greater compatibility of each 
in; over a range of computers, ihe higher 
sales can be expected, As most of the cost of a 
program is in the initial development, the 
retail price of any package will be reduced 
when quantity sales can be realised. The 
puatc-to-legal copy ranu is inversely 
proportional to ihe selling price, so lower 
prices mean higher sales again, l T n fortunately, 
the high number of illegal copies of any 
program encourages suppliers to distribute 
their software on ROMs. These cartridges 
have many advantages with their instant 




loading .md stabiht> Mere important, i"t 
many of the small memory micro*, as a 
cartridge is memory itself, il needs less RAM 
to run a program. By not making the program 
relocatable, even il an unsiiupulous usei does 
manage to read the ROM. the code is unhi 
to tun in the RAM portion of the computer, 
I .11 using complicated colour graphics, settle 
excellent cartridge programs can run in If'K 
RAM devices thai would need IKK to be 
RAM-based, Until the standard memory of 
home microcomputcn is up r>> MK, cartridge 

programs Will he an important medium lor 
software distribution, 

Europe in the lead 

Business software sutlers less from illegal 
ing. 11 often requires regular updating, 
and business users arc less amenable to the 
cost savings of pirate copies j^ainsi the 
siippoti and assistance provided tidi 

users. 

Ituropv has always lead the application 
software market, The Americans may have ihe 
upper hand in system software, wnh 
companies like Microsoft and Digital 
Research, and systems such as CP/M, Ms 
IS and I'nix to then J,i;m. but it is m 
Europe and Britain in particular, that the 
application software expertise 

On the hardware side, considering thai the 
I ' . K. is one of ihe major design cent to of new 
computers in the world, we do not always 
seem to bring the innovative products to 
uon, espectaU) at the low end of the 
marker So often British companies develop 
systems, only for the financial!} rewarding 
product ion to end up overseas 

One new business computer to emerge tins 
it was the Apricot from ACT, which will 
surely be one of the top sellers in l l >S-| With 
us I KM compatibility and new mkro-diK 
drives, 11 bridges the gap between latest 
feneration hardware and existing software, 
/ room for ne*- programs thai would 
ust ihe lull capabilities of the hardware, 

To predict what the future general ions 
will have to offer the user is difficult. There 
will have to be a pomt where the rate oi 
technological advancement slows down hut 
only for commercial reasons, and 
consolidation of the existing models is the 
main concern. The major manufacturer! must 
all find their niche in ihe marketplace and 
develop il. There is no reason id believe that 
the Computer itidustty will not develop as the 
motor industry has, but in a considerably 
shorter time. 



YOUR COMPUTER DECEMBER 1983 126 



"V.'\ win bj 9tLUM.i a very powerful 
computer with more than 256K of memory fa 
less dun $50 by 1986" predicts Commodore 
t K. thief John Baxter confidently. But what 
of rie*! year, what sort of machines and 
software can we expect and bow much will wc 
hvc to pay for thenf' 

Everyone agrees that you will be able to buy 
more perfonnanLt for less money but there arc 
disputes about which routes to take to get 
there. Firms like Sinclair and Atari are known 
to be working on 16-bn machines to cvcniually 
replacc the eight-hit one* they are selling now 



'We will be soiling 
a computer with 

256K bytes of 
memory by 1986' 

and Acorn is even attempting to skip that stage 
and move straight form the eight-bit BBC 
Micro to the 16/52-bit Gluon unit. 

Some software houses are confident that by 
next Christmas "16 bits are going to be 
standard" 1 as Imagine'; Bruce Kveriss believes 
i in the other hand John Baxter thinks that " Id 
bits are irrelevant as far as home computers are 
concerned." 

EUn director Robert Maduc w so confident 
that ttt;ht-htT machines will still be to the tore 
thai ihc high specification Elan Knicrprisc 
which will be launched in March is designed 
around the Z-80 chip. If the Japanese finally 

THE 



John Biittet marketing 
manager of Commodtitv t/f( 



r 




FUTURE 




THE 



MICRO INDUSTRY 



make the impact long predicted on the Brinsh 
computer scene n wilt be w«h Z-80 based 
machines sharing the MSX standard. 



'16 bits are going 
to be standard' 



Despite ihc fact that many British 
companies believe that MSX if a "low 
performance standard" as Robert Madge puts 
ii the specification of some of the MSX 

136 YOUR COMPUTER DECEMBER 1983 



machines recently unveiled in Tokyo is quite 
impressive 

The Japanese think that people are 
beginning to treat home computers a bit like 
hi-fi or televisions and so long as a unit 
produces reasonable sound and pictures and 
looks neat they do not care whether it contain* 
state of the art electronics or not. 

One trend among the Japanese machines is 
greater integration with other domestic 
appliances. The Sanyo NFC scries micros for 
instance can connect up to a video recorder or 
television and take still pictures from there m 
use as the raw materials for computer 
manipulation on screen. 

Yamaha has even incorporated the MSX 



specification into something which looks and 
behaves like a cross between an electronic 
organ and a home micro. But while the 



'Commodore never 
looks to the past' 



Japanese seem to think that the recipe for 
success in 1984 is to use a proven hut old- 
fashioned design and then embroider n with 
gimmicks like built in light pens, and lake 



r 



~ 




ad wantage of a potentially huge common 
software base to all MSX machines Robert 
Madtie believes in greater sophistication. 

lie believes that the naiural point to 
standardise will be when home computers 
have reached the limits of the other equipment 
you can find around the home. There is tin 
point in making computer* with better rcsolu- 
mm rlun ihc average television unless you 
think people will go out and buv purpose buili 
monitors. John Baxter thinks that falling 
computer prices will cut the ^osts of peri- 
pherals including monitors and, of Ltuirse, dtK 
drives. 

He predicts a price ol (\2Q for a good b\K 
computer ihis time nest year with disc-drivi^ 



Merrion Jones corners 
some of the leading lights 
of the microcomputer 
industry and presses them 
for their views on possible 
developments both in 
hardware and software. 
How will the market 
change in the new 
year? ^ 




Bruce Evertss. genetai manager ot Imagine 

Software 

costing 1 1 IX) and full colour monitors also 

.ITOlllld £100 

mmodore never looks to the past." 
quips John Baxter, and indeed Commodore 
has a new home computet on Ihc stocks for 
) i iM bm first glimpse of thai will not be until 
the American Consumer Electronic Show next 

The failure of MSX or any other standard in 
establish nself intrrnatuMullv means thai the 
traditional problem of the software industry 
lack of portability between machines — will 
not be solved in 1934. 

Whether games will be as important next 
year as the)" were this is a; mot.it poini Sew 
program like International Soccer for the 



MSX: 'A low 

performance 

standard' 



(Commodore o4 — reviewed in this issue — arc 
taking computer games beyond ihe two- 
dimensional arcade and maze formats ut 
many people believe that games will decline in 
importance compared with educational and 
home control and planning software. 

The I bn. fa instance, will come with 
60 -column display and a built-in word 




processor Bruce Everiss of Imagine bclu- 
that the market for games will at least double 
nest year: "It's the mass market. Games 
playing is here to stay". At the same time he 
sees a narrowing of the gap between business 
and home micros which perhaps explains his 
enthusiasm for 16-bit computers with colour 
and sound. 

Everiss expects to see the first million-seller 
program early in 1984. Although bubble 
nvemory and monster RAM chips are begin- 
ning to drop ui pnet no-one expects to see 
them displacing disc drives as a means of mass 
storage for home computers by next 
Christmas, However, there seems general 
agreement that the drives themselves will be 
down to the £100 mark by then Outside of 
Sinclair ind Coleco there seems little 

'We're going to 

get some viable 

competition from 

record companies' 

enthusiasm lor fast tape storage systems. 

John Baxter points out the rapid progress 
educational software has made this year 
"whoever thought you could sell Physics O 
level revision," A point echoed by Roben 
Madge who says thai by next Christmas 
"homework will naturally be done on the 
computer". Although he still believes thai 
"games will be dominant" 

Everiss sees the m-house software com- 
panies - Sinclair, Acornsoft, Commodore 
continuing to do well but thinks thai there will 
he a thinning out of the ranks of the smaller 
houses leaving a few big independents. 

'"In the tag term" Hveriss believes "we're 
going lo gel some viable competition from the 
big record tympanies" Among the hardware 
manufacturers everyone is expecting a shake 
out with some companies going lo the wall or 
Stopping making home computers. 

After all the predictions that 198 J was going 
io be the year ol" the Modem there is bound to 
be some cynicism at predictions that by this 
time next year a lot of the Christmas cards will 
be sent by electronic mail. Nonelhdrss, 
Modems have now been completed for most 
the major home computers and some com- 
panies like One and perhaps Sinclair are con- 
sidering building them. 



YOUR COMPUTER, WCtMBER 1«3 127 



XMAS 
CAROLS 



While shepherds 
watched the box 

one night, Andrew 
Bindon plugged in 
his BBC Micro. 



PROGRAM LISTED phm 19 of my 

irile Christmas carols m three-pan 

harmony. At the same nine st displays; each 

note on lo a normal musical score individually 

** i he note u sounded. The c lever pan i* thai 

the program compose* its own musical 

harmony to go together with the melody. 

undenund how ihc auto-hammm 

I wc must consider the way in which 

ilest musical harmony is composed. As an 

•xiinpte let us use the key ofG major, Using 

inmon name-note notation together with 

numbers this runs from octave to octave: 

GABCDEF*G 

81 89 97 101 109 117 125 129 

If we start at any noic on this scale and take 

three alternative notes we form a triad. Basic 

musical harmony uses three of these triads 

rung, on the first, the fourth and the fifth 

noic of the scale. These arc called the primary 

triads. For the kev of G major thev are; 

G81; B 97. D 109. C 101; I 117, G 129; D 109, 

125; A 137 

w"e sec that using these triads we have 

encompttted every note in the scale. The tame 

. lu-rds will also map on to notes an octave 

. or Two octaves. These triads have a 

iilarly pltrauitl musical >oimd H\ 

selecting one of them to play with each note in 

the melody we can obtain an interesting and 

-tinl-sounding harmony backing. 

The melody itself is read from data 

siau-ments at the end of the program. These 

rn.iv be replaced in your preference. There is 

ing new in reading data for music in this 

Nut perhaps something which is new is 

the way in which the darn is stored. Each of 

ngle individual melodies are stored as 

three lines of data. The first line gives the 

a of rhythm units/hat, the position at 

which the bar is, the time signature, and the 

besi way to display ihe music respectively 

The second line then gives the pitch of 
each note in the melody. The third line then 
gives the length of each note in the melody. All 
three line* are read ai the start of a piece. The 
procedure Prix data then picks out the 
character from the data string and converts 
them to pitch and duration numbers. 

In ihis way a great saving on space is 
obi ained and also this opens up the Way for 
future enhancement of the program. 

The code for (his data storage is d for Do up 
lot for Tc in the first octave and then the same 
for the next but in capitals, The range could 
be extended if needed. The rhythm is c for 
crotchet and so on. Dotted notes are then 
represented with capitals. Both of these codes 
cam be understood clearly by examining ihe 



relevant lines in the Frocdata routine 

The dalB conversion process may be fully 
understood by typing in the following lines. 
DiDRDFFMIiOisssDiDRDFFMHDlsw 
MRDMSFMHDFMRD (RFTURNI 

the computer will respond with Mistake but 

this does not matter . 

REPEAT char* GtT*;pcsii iNSTRr'drmfall 

0RMFSLTa".char4);pn% VAUMID& 
T 03304 1 049053061 06907708 1 089097 1 0110911 

71 25129". IposJi 1i*3 « 1 ,3I):S0UND1 . 15. 
pit%.2:UNT(L FALSE iRETURN) 
Now move the copy cursor up to the line of 
characters which you have typed above, think 
of the rhythm of the carol As With Gladness 
Men Of Old, and start tapping the copy key. 

The process of transferring the notes 10 a 
musical were takes up a good part of the 
program. Each duration note is a character 
defined in proevdu. The score is displayed in 
Mode 4 with a yellow score background and a 
red foreground. At the beginning of each piece 
four lines of score with treble and base and key 
signature are constructed. Then as each note is 
played it appears on the score. 

It is my experience that a program is never 

finished, merely developed. You start with an 

idea and develop n more and more until u 

becomes so huge that you scrap it and start 

Again. It is thus that the listed program is open 

to enhancement. One thing you might like to 

try is changing the following lines thus: 

770 pii% ■ VALlMlDSt 03304 104 505306 1065 

07 708 10B90931 1 1 09 11 3 1 25 1 29 (posit 1) 

*3 - 1.3H 

7340 DATA33.45.6t,53.65.8t.61.77 89 

1950 kev VAUMfDJr 1*32505234161". 

pitch 4 - 4 | 12*<pnch > 401.11) 

i960 flat VALiMlO*("00 100 100 l 100 100 

10000" pitch 2 +7 t 24 '(pitch >* 401,2)1 

This causes all the melodies to be played as 
if they were written in a minor key, although 
the score as shown does not allow for the 
raised 7th and the minor key is a rather crude 
version*. 

The program was developed on a 32K 




machine — Model B, OS 1.2. It will run on 
any 32K machine, but will not fit into loK w 
memory for the Mode 4 screen. The program 
Saves in 20 blocks — that is 5K 16K users 
could try leaving out all the graphics score 
routine, meaning variable names, the title list, 
or the input procedure, I have not included in 
the listing a profusion of untidy Rem 
statements. The meaningful variable and 
procedure names and the colon Iptcing 
between each procedure attempt ro make ihe 
program readable. 

To help your understanding of the program 
and debugging your typing errors the 
following may be useful: 
PROCinpul - inputs choice of melody, the key, 
speed and envelope selection 
PROCread reads data into ihe arrays. 
PROCnrat - mis up variables ai the beginning 
of each melody. 

P ROC da I a - converts, data to pilch and duration 
numbers . 

PflOCplav sounds melody together with 

harmoney syncronised. and checks lor first beat 
of bar accent. 

PROCcboosecord setocls harmony to 

accompany melody 
PROCenv - defines envelopes 
PFtOCtoscore pots note onto screen 
PROCvdu - turns off cursor, defines 
colours and note characters 
PROCsfore sets up screen. 
PRQCclef - draws base and treble. 
PROCbar draws barhoe 
PRQCs.>g - draws key signature 
PROCtotrep selects random keys, speeds and 
envelope selections. 



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YOUR COMPUTER OECEMBEB 1 981 1 2i 




THE MOST IMAGINATIVE 

GRAPHICS PROGRAMMING 

SOFTWARE FOR YOUR SPECTRUM. 




There's now one piece of software that's a must for 
every 48K SPECTRUM owner. 

It's called 'PAINTBOX". 

If you wish to exploit the full graphics capability of 
your machine, you can doso . . . simply and easily 
with "PAINTBOX". 

"PAINTBOX" is produced bv Print W Plotter 
Products — the company that has pioneered (and 
led) the field of graphics aids for ZX Computers. 

With our name and reputation you are assured of 
quality and immense graphics capability! 

Take a look at the actual screen prints opposite. 
They are the sort of thing you could produce on your 
SPECTRUM, 

With a little practice — and "PAINTBOX" - you 
could be planning, producing, and utilizing these sort 
of graphics in your programs — producing software 
that will come alive with originality! 

Just look at some of the facilities available from 
"PAINTBOX": 

UDC EDITOR: ^U SI Mr Lb 

Giving you the facility to define (and re-define) up A ("J-Jl [3 
to 84 graphics characters which can be held in /^VYI TT T\ 

memory, stored in your BASIC programs for instant i^UU L<L/ 
recall from its own built-in machine code! JSE ITH 

UDG DRAWING BOARD: 

A fully integrated UDG Planner for up to 4 Banks 
of user-defined characters. Planning facilities include 
MIRROR IMAGE, ROTATE, INVERSE, and FILE. 

SKETCHPAD: 

An experimentation 'window" that allows you to 
try-out your UDG ideas during development of the 
84 graphic character set. 

PRECISION PLOTTER: 

An amazingly versatile high-resolution drawing 
board which includes PAPER choice, INK choice, 
PLOT, DRAW, DRAW RADIALLY, CIRCLE, ARC, 
OVER, FILL, instant change of INK colours 
{including BRIGHT), ERASE, and STORE in 
permanent memory during development! 

All cursor movements can be controlled by 
Joystick or Keyboard operations, with choices which 
include FAST or SLOW movement and "Crosswire" 
or single Pixel cursor! 

SCREEN PLANNER! 

C ombi ning the best of both worlds! PRECISION 
PLOTTER and UDG Characters! For complete 
screen planning of graphics. A multi-purpose 
graphics facility to enable you to produce screen 
graphics that are the equal of those seen in best- 
selling software! 

All graphic results can be sent to the Printer, saved 
as SCREENS or SAVED as CODE with its built-in 
machine code routines for instant recall from BASIC. 

"PAINTBOX" is such a comprehensive graphics 
toolkit that it is impossible to describe it all in one 
advertisement! 



The program comes complete with a cassette 
demonstration of what you could produce with 
"PAINTBOX" including a 28 page booklet describing 
in easy-to-understand language how to use it for best 
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Of course, "PAINTBOX" is ideally suited for use 
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The dedicated programmer will want t o use it in 
conjunction with our ZX SPECTRUM JOTTER PAD 
- THE ORIGINAL (AND BEST) GRAPHICS 
PLANNING PAD! 

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Write now. Phone your Credit Card. Ask at your 
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At only £7.50 (plus p&p) it's a marvellous 
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01-6607231 

24 HOUR CREDIT CARD ORDERING 

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High St ml. London SEl 9SE Pleas* tend me: 

PAINTBOX' SOFTWARE @ £750 ( +75p p + p total £8,15) 

.... SPECTRUM JOTTER PADS @ £7.50 1 £l50p + p total 1*1 

SPECTRUM KEYBOARD OVERLAYS $ £2.60 1 J5p p + p 

total £2 95} 

5 ROILS ZX PRINTER PAPER fc? £11.55 ( °5p p + p total 

£12 50i 

... SELF-ASSEMBLY CONSOLE (SPECTRUM} @ £4 50 <75p 
p + p total £5.251 
1 enclose remittance in lull 
H Please bi II my Access i Bart lay card / Visa Mastercard No: 



1 














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' 


W 

AC 


Overseas orders please add Z5 % for additional surface mail rate 

MP 


>DR 


[*<; 





I DEALERS: 

■ Phow 01-403 6644 for enquiries 



V 



Paul Hargreaves saves 
Ezmerelda with the help of 
his trusty Spectrum. 



00 9 






% 



Thk PR0OKA.M ts IN two para so thai it cto tit 
m J6K The first one is Tor graphics and (he 
second is the game, The graphics program 
should be Saved first before typing in lie 
game. 




Once the game is running the object is as 

follow* 

To readi Ezmerelda you have to go through 
five screens To cleat a screen you musi reach 
the bell rope at the tar side of the screen. 
Beware of the sniper scaling the wall. If you 
take too long he wiJJ reach the top and after o 
while, show you with an arrow. 

By the way, he gets faster each round, up 
until the fourth one. tf you manage to save 
Ezmerelda withoui losing a life then a super 
bonus is awarded , 



LiSftng t 


2,23 




10 BORDER PAPER INr 7 C 


130 DATA 


62,127,127,127,54 Ei _ 


_5 PRINT AT 11,10; PLftSrl P* 


16,7 




PEP 1 5TC- THE TARE ' 


-40 T-ATA 


62,127,127 127,54,54 5 


20 FQR a =144- TO 164 BEE- , CI, 


5,112 




h -144: FOR b =0 TO 7 READ : -, 


150 DATA 


60, 126, 255, 255, 255. 255 


E USR CHR$ 6+fr : '.E'T b NEXT o 


.126 .60 




30 DRT3 56,124,126,244,236 194 


160 DATA 


24,2 4 60,90,24 2- 53 2 


3 3 .120,250,255,126,56 5c 4 5 43, 


4 




56 


.'0 DATA 


0,60.46,70 70,39 "53 33 


40 C-hTR, £f . 5c 126,47,55,67 34 


DATA 


25$ ,60 ,60 , 125, 126 12 f 


30 ?5. 255, 126 26,12 12 12 26 


E5E 26 




50 DATA 124,252.136.191,38,12* 


190 DATA 


8,41,34,113,165 ;^I-,30 


63,193 


,255 




60 DATA 62,63,61,253 23 125 55 


200 BORDER PAPER IN* 


.195 


LS 




70 DATA 254,254,254 ,0 2 39,239, 


210 PRINT 


AT 1,2, INK 6; 'THE MU 


239 ,0 


NCHBACK OF 


NOTRE DAME" 


3t? DATA 0.0,4. 194 .255 194 - 2 


220 PRINT 


TA6 C5J I P^PEP 1 


,0,32,57 ,235 67 32 


SV P,HAR£R 


EfWE-5 16 9 = 3" 


90 PAT# 0,0 24.36,36,56,90 iCi 


235 PRINT 


AT 10,8, INK 6, PAPER 


129 , 145 , 102 , 24 C 0,0,0 


2; "LOADING PART TU0",AT IS 


30 DATA 1,3,7,15,31,63,127 255 


RE5S PLAY 


ON T^P= RECORDER 


110 DATA 253 ..255,125 .56 55 29,1 
F 7 

"-23 :-A-p 23 62 32 127 127,127 5 


295 INr Z 


print at 17, : _:-: 


300 5TQP 





112 VOUfl COMPUTER CttCEMGf «M »S3 



2MMMMMHHHHHBHHBMB00® 1O0&A 


- 

•Mi BJHI fJBt H 


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tOUR COMPUTER, OICEMBtR 1903 133 



PRODUCTS FOR THE VIC-20 + SPECTRUM 



SPECTRUM OWNERS! 
NOW AVAILABLE 

THfc ULTIMATE IN JOYSTICK 
INTERFACES 

THE FOX PROGRAMMABLE INTERFACE - 
AN INTERFACE WITH: 



+ Complete compatibility with all programs, 

• In-built memory to Store up to 16 different 
games keysets at one time. 

# Battery back-up so no loss of memory after 






* Full casing. 

* Through port for further expansion. 

* Proven compatibility with the microdrive 
power off. (Battery recharged during use so no* Built-in pseudo Rom facility with room for 
replacements are required). personnel tool kit. 
One switch only for simplicity of use. # Compatible with all Atari-type joysticks, 

The superior interface without awkward trailing leads, just plug in and start your game. 

LAUNCH PRICE ONLY £28.50 incl 

SPECTRUM 
UPGRADES 

NtV £21.00 

FOX ELECTRONICS LTD. , NC LUSIVE <£ U e 2 mafhines onlyl FOX ELECTRONICS LTD. 

A high quality kit at a new low, low price which simply plugs into existing socket 
within your Spectrum, no soldering is required and step by step instructions are 

supplied. Takes your 16K to 48K in simple steps. 
PROBABLY THE BEST KIT AVAILABLE AT DEFINITELY THE LOWEST PRICE 

AND FOR THE VIC-20 

Vixen RAM Cartridge 

Switchable between 16K or 8K + 3K. 

Gives you the option of lull 16K RAM or 8K and 3K 
RAM in one package. When added to a standard 
VIC-20 gives 16384 bytes of extra memory in 
memory blocks 1and2 or 3092 bytes of extra' 
memory into the 3K memory block AND 8192 bytes 
of extra memory switchable between memory 
blocks 1 and 3 

• Fully compatible with available 
motherboards/ modules. 

• Simply plugs into the rear expansion port of 
computer. 

• No re-addressing of existing BASIC programs 
needed. 




Only £34.95 



<m& 



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141 VHKtY tcutli. msiM.MHkt hwiv in !■:** :«*,- 




Please send me; — 

Joystick interface 
Spectrum upgrade 
Vixen Ram 
Catalogue 



Name 



n 
n 



Address. 



I enclose E. 



134 VOUfl COMPUTfR. 0€C£MBFfl 1963 




|)l Alii v Miv.it i s are uackinp inexorably 
downward, threatening; six chid which n is 
vour |ob in preserve. You do this hy pbung 
ymir sight at the bate of the thread- like vapour 
i rails which arc weaving the delicate hut 
deadly tracery of death in the skies above ihe 
stricken setllcmenis l*ress the tire huiti-n and 
the incoming bombs, will be neutralised Vim 
have iml\ a limned anunim i*l energy, sn 
in (he impulse to pepper ihe iky with 
upper atmosphere detonations as you will be 
left tn watch helplessly as yuiir beautiful home 
planet is pounded imo rubble 
Begin bv typing in 

PCLEAR 8 

tcattrmmrd on runt paget 



'.?.<: tvne cadi ki rnd tn 



10 REM MACHINE CODE LOADER 

20 PRINT "TYPE '999' TO END" 

30 INPUT "ENTER START 

ADDRESS"; 5 

40 PRINT S; : INPUT V 

50 IF V=999 THEN END 

60 POKE S,V:S=S+1 

70 GOTO 40 



Bas/c program. 



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VOUB COMPUTER. WCEMSEH 1 9S3 1 3& 



icatittnurd from prvvtous tstge! 

and (hen type in the machine-code kuder 
nun, and enter l he machine code Afta 

entering the machine a>de Save what vuu have 

done b) rypi 

CSAVEM"COM<M|-.£tHlE00,&W34FF.&HlE00 

irhkb will Save boih chunk> of the machine 

code — and program and data — together, or, 
l require 10 Save them separably because 

you are shori of tape, then type 

CSAVEM COMUMi &H1E00 WH2910.&H1EOO 

jnJ then 

CS AVEM COW2i m I &H3000 & H34F F . &H30XXJ 

Now type in the Ba*.ic Controller Program, 

««mc .main Save this on tape, and then Run it. 

l-'ull instructions are given in iln: program. 

There are .i lew ioiefl \es which 

i continued at* page I4t) 



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(listing continued an page 1415 



13fl VOUR COMPUTER, WCEMBEH 1983 



Calisto Computers 

1t9 JOHN BRIGHT STREET, BIRMINGHAM Tel: 021 632 6458 



BEST OF ATARI 



AtARJ 6PICIAI «Wt 
KEYBOARD 4Q0 CS 

Hf.Li.CAT ACE C 

FLOYD OF THE JUNGLE C 

CHOPPER RESCUE C 

THO*NEMs NURSERY RHTME.S C 

S T0PJV MACHINE D 

FACE MAUI H D 

SNOOPER TROOPS I O 

SNOOPER TROOPS 1 D 

SHCOTWO ARCADE C 
PAClFrCCOAST HIGH WAV 

C LOWN5 b BALLOONS C 

KAYOS C 

K>M.l 

I'L'MI I D 

20RKH1 D 

DEADLINE O 

ST ARC ROSS D 

WITNESS D 

SUSPENDED D 

AERTOftJ D 
TMf 64. ADE Of BLACK POOLE D 

ZAXKON C 

ADVENTURE INTERNATIONAL 
ADVENTURES ■ 1? MC* C 

5AOA1Jlt)l MC* D 

SEA QHAOC* C 

SEA QflAGC* 

STHATOS C 

STRATOS D 
THE CURSE OF CROWIET MANOR 
ESCAPE FROM TftAAM 
PRfPPIfl CD 

pRtmtn CD 

•ASIC ROuTMCS C 

BASK HOUTINE S 

OIS*EV D 

flEAH GUAAO C 

BEAR GU ABO D 

tLlMlNATQR C 

ELIMINATOR D 

tonotf c 

SLUG OFF 

TUTTl FRUTTI C 

TUTTIFHUm D 

STONE Of Sl&VPUS 



ft* 

32* 17S0 

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fi!K 1790 

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To CALISTO COMPUTERS LTD. 119 JOHN BRIGHT STREET, BIRMINGHAM 
PLEASE ACCEPT MY OROER FOR THE FOLLOWING PROGRAMS 



I. 
2. 

3 

S, 



Cakisto ConnpLrlers Ltd. 



OOMWKH Hi 



Cheque No . , for C 

Please debit my credit card ACCESS.' VISA No 
Pr«r*ord»wi*»mt«n{&1637&4&a Signed 



enclosed. 



SFIOAITSTS M IWaiJHPlJTfRS JWO SOFTWAff 

■4 jam mm smn ewq i w bi <h 

TlkriMM H71637 t*G* 



TOUR COMPUTER DECEMBER 1983 137 



THIS YEAR 
HAVE AN OLD FASHIONED CHRISTMAS 







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U you do not want to on thai magtene wrw ytw adet out careUty on paun paper 
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lowna Kconiputa(wludiaaSPi:CTRUM>BBCIeiKk»»<lie^u^ 
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Signature 

Ptosse write dearly Owe cart tread it you wont get rt 

Name 

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lShJ-weeriiceoei 1C0 power pow«»ne«^iUle^^e^m4aK.CTXeptak>ttiyf»W 

well'KEMPSTW.JAGF CrUX3fi»KrT Jcwstjcks (Abbwtl 1«/«K SPECTRUM &% 







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YOUR COMPUTER. DECEMBER 1983 141 



^pAKLEAF 



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_■ 



David King illustrates a 
draw and undraw routine 
for the ZX-81, It is similar 
to that provided on the 
Spectrum. 



Fuji itg 2 



:«C* 



iwtflP O^fl-, Jl.rHB OK|. 

i-OPv CO£> i»su* "B.NCJ -■ HtTWHh 

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■; h c ^^4_« ■: qb '•i**3om int 
: pw uac int * 



on BY '. 




J PPM CLtfAR 
•V' CQP> COSUB 
. ">£•*£ COPY 
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i« p. 



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/»**' fttTUPN 

e ' **»:*«c>si£a 



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"» I ••SON 



INT 



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"M Vft«JO?.*3 

See. ie^os,*?- 



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figure b 



B 



,iBi 







*N 



Mtrl LLJMI QK|/, CLMA OK0, 
lOPy GOSUB *TPhO-» :f — 
"'ClV GOP* M7m * ■■■T 

Tear c qpy Tr e ,- •••- 

^MMEYfSTBf - «: 

URL /| \I,STB§ OB 

e K'LH ■" OR * 1*4 SON IMT 

■ c PHuac int ™ 

\9 FOB A.ltSIA TO t*ft33 
2S LBT B-PEEK R 

ii-uniMT Chr| SMT H/it.)4i.LH 
*l| {NT ro-l6>tHT ift/lti itBi , ■ 

19 IHPt/t B« 

SB IT B|. tHtM ftOTO f* 

<••* POKE R.lBtCObC f*».COOC Afe<3 
> -*?» 

7* HE *T « 



figure 4. 




" BCTUBN 
UfiW 

'"l '••AON 



n 



•?op% c pause imt 

I* FOR *«-3B TO 3* STEP 

.;,•> p*^n f >.je to 20 step 

31 Pi.BT 39,26 
40 PO*.tT 16S0 7.X 

«• poke ie?t>e>,v 

ftjj IP NOT K PNO NOT V ThtfN COT 
3 Ml 

m RAHO USft 14814. 

' HiW V 

A» NgXT W 



figure 5 



•\">W COPv C09U& 







3p »f Vl*>. -f '"^TPj 

^••-ufs c ^fkW (L OR 
IOPV C PPUBE INT * 



»*S0^ INT 



\* uer c-e 

2» F-OR P*B TO ft STEP' .i 

19 PUOT 3 9, SB 

40 PO*e 16*07 , COS m*H 

:?he iesoe,*lH h*C 

.' KftNti kJEC 16514 
'• LET C-Ct. ^S 

NEXT ■=! 
■■» FBjNT AT ;,M, -a 5HCLL' 



WH N i HE ZX-SO first cum*: out pn 1980 with 
us 4K Basic Rt,>M, Sinclair announced il 
would **>on be producing in optional 8K 
drop-in replacement chip, which would give 
;.: graplkks, trig functions, all keywords 
dni'L-i Ifom 1 he keyboard, plus inverse 
graphics, and H'/i digit llojnnt: arnhmnn. 
However il also would have Read, Restore and 
Data, plus Draw and I'lidtaw, and a number 
lit tit her features. 

Very soon alter Sinclair kunched the new 
8K ROM. 11 decided to delay introduction of 
these features and design a primer. The new 
prima routines necessitated the space the extra 
facilities took up, and so when the HK RDM 
finally came out Draw and I'ndraw were not 
there. In addition, Sinclair designed a 
completely new computer Lo go jround the SK 
ROM, which it k ailed the ZX-81. It had a 
steadv display which was sadlv lacking on the 
ZX-8U with HK RUM 

1 decided it would noi be all that difficult to 
give the ZX-SI Draw and rndm facilities 
like those on. the Spectrum. Useful routines 
which 1 might want lo include in Basic 
programs I find easiest 10 place in Rem 
statements. This Draw routine draws as 
straight a line at possible in pixels from ihc 
last point plotted to a relative position 
indicated by the Vectors Poked into addresses 
16507 and 16508. There are onlv two t'SK 



addresses lo remember, one for Draw and one 
for Undraw, just as there are Plot -imJ UxtpkN 

Type the Hexloadcr into your ZX-81, line 1 
contains I2CJ full-stops. 

Then type Run Newiine and enter the 120 
Hcxtude* in figure 1. You can enter them 
singly, followed by Newiine, or enter ihem in 
batches, [hen Newiine Try not to make any 
mistakes, even one mistake may make the 
routine crash. 

When the report rode LV90 appears type 10 
Newiine. Line 90 ensures that when you type 
10 Newiine, tines 10 to 90 are all deleted, we 
no longer need the Hcxloader part of the 
program. You should now have an gncdltable 
line which looks like ihai in figure 2 — 
chaos. 

Line contains the Draw routine, the 
characters you can see are the equivalent of the 
hexcodes you entered. At this point Save the 
Rem statement on tape. 

When you have checked that it has Saved 
properly add lines 10 to 40 to your Rem 
slaicmem. and type Run Newiine — see 
figure 3, 

If all is well a diagonal line will be drawn 
from the bottom left-hand corner of the screen 
lo the top right-hand corner. 

Notice that the numbers in a Draw state- 
ment can be negative, although those in a Plot 
statement cannot, if x { 16507) is negative the 
finishing place will be x pixels to the left, 
instead of to the right. If x is zero the tine will 
be vertical. If y (16508) is negative the finish, 
ing place will be y pixels down, instead of up. 
If y is zero the line will be horizontal — see 
figure 4. 

One thing to ensure is that % and y are not 
both zero, this causes the Draw routine to get 
a bit muddled, however Break brings it out of 
its misery. 

(coniNtved on ntrjt page) 



FitfutQ 7 



REM CLCRR OKl/t CLEAR OKflf 
COPY GOSUB 77RND? RETURN C 



COFr COPY GOSU 




r lj,7 



^CIV COPV WCm s ■ 
7Cf C OPY BP £ .- 
■?INKEY*STR4 - 773 
OR RT URL s% -^STR* OR AT C 
T?7U t5:C; X7LN B" OR ?(*#5GN 
-OPT C PRUSC INT •* 
10 PLOT 40 . ia 
20 POKE 16507,-30 
3D POKE 10506,20 
XQ RflNO U5R 16514 



ETURN 

STR-5 




Figure 8 

_ 3 P*; 



LHCo 

C£BC 

- U|6 

- - 



«tn CLCRR OKf|, a CLERR OKfil 
COEV G06UB 77KND7 RETURN 



?C|V COPV H2jb 

5 TCT: COPY t?£/ 
Rl ->INKEY*5TR$ - 
hT V'Rt_ .'| rl "'STRl 



10 PLOT 31 .21 

20 POKE 16507.15 

30 POKE 16508,23 

40 RhND USR 16514 



COP 
COPY 
7INKEY 

C. X?LN 
PRUSE INT 



C 



RETURN 

OR RT EgRHD 
7 I**31GKI INT 



YOUfl COMPUTER Of CEMBER 1983 143 



t continued (ram previous pagel 

Try the short programs for a demonstration 
of the ease wtih which graphics tan be created. 

If you do not get the requited result — or the 
program crashes, you have probably made a 
mistake in entering the Hexcodcv fse the 
program in figure 6 tti ihcck through the 
I Icxojdcs. If you want to change an entry type 
in the correct Hcscode, then press New line, 
otherwise press Sew line on its own. 

It vou understand vector drawing, ignore 
this stvtion "the statement Draw to draw a 
straight line on the Spectrum lakes the form: 
DRAW *.v 



fitiute 9 



- 5 by 






. > a 

PHTUWN C 



M.1 ii-LRPV 

copy ; 
copy 

"RL. /% 'T'ZSTlV* OH . 
|S C KfLN ft Ofl 'ItitCN INT 
C Pfl-LTSC 1ST ■ 
LB FOB ': «t! TO 43- STEP 5 

39 *lot »,y 

ie »one ie?ee.«a-v •» 

M HrtNO USB 1«14 

"iB MtXT r 

■S FOB >:»* TO A3 STEP 4 
»0 PLOT x,41 

->E 165B?,M-KI2 

nawt* u*H 14814. 
158 riE-T - 



Using this program you have to Poke x and y 
into memory locations, in addition the (land 
I'SR 16514 command does not set the 
Rjndom need You could ?quallv well use 
Print USR 16514 or Let A-USR165H, and 
neither a number would be primed nor a value 
assigned 10 A; control is passed to the next 
hm- 

The starting place of the line is where the 
last Plot or Draw statement left ofT — this is 
called the Plot position; New resets it to the 
bottom left-hand corner {6,0) — and the finish- 
ing place is x pixels to the right of that and y 
pixels up. Notice that Draw on its own deter- 



figure fO 



m 
cc*»c 



HE* 

■-{. 




CLEHH OrvB/t ClEAC OKfl i 
OOSUB ■'TfihD-' RETURN 

COPYTfi 



h1 u 

roPr 

xa 

■sa 

-ca 

B 

ae 

so 

ioa 



•■■*» BET URN 
■' ***"*■' jP?ST 

- '-3. 

on mi 

"» ( • « SON 



'-■ftL I ■'^STBI 
_ C;)nLN ■ Qfi 
C PBU5E INT * 

won v»e to 43 step a 
plot «.a 

POfi 1MB? 43 

POM 1WM.V 

PAMt USP 1«SU 

PLOT il.ll 

POKE t«S«T.-«3 

POKE l&S&ft , -V 

BAND U5R 16=:* 




INT 



mines the length and direction of the line, but 
not its starting pom!. 

You can experiment with a few Plot and 
Draw commands — see figures 7 and 8. 

Figures 9 and 10 make use of the inter- 
ference patterns between the individual pixels 
(rf lines to create inlcrtstmp patterns. 

Figure 1 1 draws a number of random direc- 
tion lines, each laving olFfrom where the last 
ended. 

As I mentioned earlier, it is also possible to 
Undrew as well as Draw tines. To Undraw 
lines use Rand USR 16620. The program in 
figure 12 illustrates thts 



Figure I J 




tl CLEBR fi! 

go sua 

COPv 

"OF I 






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HfcEj f 5TO» 
i RT -.i«L ■ *2! Tl5 * 

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B»i to as 

JO POKE lfeSO^.IKT 

*• POKE 1BSOS.INT 
LC439 

39 RBNO USB 16814 

nO WET fl 




OP 

' ■ ••SON 



(RNt>f«3l 

I RMO i*3l 



PEC 



:g £ L! 



UN 





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REM CLEftR QKS's CLEAR Qt<fl) 




_Ja^a^a^a^H 






40 NEXT R 




COPY 


COPY GGSUS 7?RND? RETURN C 




73 UiSJPLGT 31.22 






£t=tCS 


7C K COPY »2- ^ »* = ? RETURN 

g^Cf 1 : COPY TP£/ ■flG?BV7STRt 




SC TOR R=l TO £S 






^£«c$ 




?a POKE loSBT.INT 


tRND*62J 


-Peel 


fc" 1 


flH VINKtYtSTRf - ^?3P5^BSf*B^ 


K 


16433+1 






Oft 1 


URL /| ^2. STR * aft PtT EQRND? 




30 POKE 1550S , INT 


tRMD+423 


-PEE 


^T7U 


|S:C;K7LH ffl" OR *? i #*SGN INT 


K 


15433+1 






3.3 py 


C PAUSE INT ** 




90 RHNO USR 16520 






18 


PRINT RT 0,0; 




100 NEXT R 






. r D 


FOR Rsl TO 2S 




113 RUN 







^\x%\v\%\mi W\m\Wf l/M/ 

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144 YOUR COMPUTER DECEM8CR 1883 



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[i L ;kl v.i ViH'R ownership of a Vic-20 is 
now into the second honeymoon stage, you 
will probably shire my view that Commodore 
probably products the best home computers 
in the world and definitely produces the worst 
documentation. So once you have recovered 
from the user's manual and have come to 
realise that there is more to Vic's life than 
jerky seagulls and a lot of bouncing balls, it 
soon dawns that Vic has some great little side 
orders if only you can find them on the menu. 
The following collection comprises orginal 
thoughts and ideas 1 have culled from various 
sources and tailored to fit the Vic. 1 make no 
claims for I he profoundness of these routines; 
but 1 believe many of them wilt hold a few 
surprises for you. 

Nothing up my sleeve 

■ There is a way of losing ihe ubiquitous 
question mark — and accompanying blank 
space — generated by use of an Input 
staiemeni. Ii not only makes for tidier screen 
displays but also overcomes what is often an 
inappropriate character — for input screen 
prompts do not always lake the form of a 
question. Here is one example of the 
technique: 

]0 OPEN 1,CkPfllNT TVPE YQUft NAM! 

INPUT #1, NS PRINT 
20 PRINT "THANK YOU 'N*:CLOSE 1,0 

■ Roih Tab jiiJ S I *C 1 I mictions CM be 
great timesavers; they do (way with many of 
those cursor-right and cursor-left keystrokes 
for a start! But one of Vic-20's quirks is that it 
will not allow you eo use either Tab or SPC as 
the fmi item preceding a Print statement. If 
necessary, introduce a dummy statement — 
such as a screen clear or cursor home — before 
calling Tab or SPC 

■Could vim use a random number generator 

that you can still influence to some extent? 

Try this: 

t0 X iNT{RNDllJ a Tl 200)* 1 

20 PRINT X 

30 GOTO )0 

This routine produces three-digit numbers, 
using Vic-20's clock as a source of true 
randomisation. But change the divisor in line 
111 to any lowci than 190 .mJ lolif-fifQUK 
numbers will start to occur. Progressively 
reducing ihe divisor will relatively increase the 
chances of a four-dign result, which could be a 
useful quality in some games of chance. 
Similarly, a divisor of 1300 or more will 
produce only two and single digit random 
numbers. 

■ Whi-n you are working on long program* — 
and particularly those involving a lot of text or 
figure work — it helps to introduce some blank 
spaces between significant blocks of the 
program, which will make for easier reading 
on screen or printout. The traditional way of 
doing this is m use one of the following forms: 
10 REM 

10 ; 

In other words, a Rem statement or single 
colon. Neither look particularly elegant, 
specially if you want to introduce several 
blanks at a time. Bui here is a routine that 
produces a line which »> truly blank except for 
its number. 
10 A LINE OF LISTING 
20 ""(DELa2) tCTRLi iRVS ON) iSHlFTH 
(SPACE) (RETURN) 



TRICKS FOR 
YOU R VIC 




30 A LINE OF LISTING 

This may seem a little complicated, but it 
soon becomes second nature. In case line 20 
fazes you, tackle u this way Press the quotes 
key twice; press the Delete key twice — thus 
cursor ing back over ihe quotes you have iusi 
entered; hold down the Control key and press 
Reverse On; hold down the Shift key and press 
the minus sign key; finally, hit Return When 
you Come lo List these lines, only the line 
number will appear. 

■ Ri- member ihe bytc-savmp - bui often 
overlooked — value of using the integer 
qualifier % whenever setting up DIMs and 
arrays, for example, the following single line 
gobbles up no fewer lhan f> 17 bytes: 
10 DIM A IT0.10) 
but squeeze a % after the A and this statement 



will then occupy just 275 bytes of memory. 
Prove this to yourself by Running both 
versions of the line and typing in direct mode 
?l RE(X) and Return each time 
■ the Super ['"xpandvi H one of the first *id- 
ons the Vic*20 owner usually buys — not least 
because it is excellent value with its 3K of 
extra memory in addition to -7 nev, loinmands 
for hand line hires graphics, music, joystick 
and other input values, and function key 
operations. 

Before your very eyes 

Although the Super Expander does not shift 
Vic's significant memory locations, there are 
times when you will want to lake it out of 
service. But frequent removal and refitting 
won't do the delicate cartridge slot contacts — 



148 YOUflCOMPUTEH DECEMBER 1983 



or your temper — any good- There is an easier 
way. Simply typing, as a direct statement, 

SYS 64850 
disconnects the expander and returns Vic-20 
to normal working. To rc-cnable the Super 
Expander, type 

SYS 41031 
Incidentally, it is somen me important to 
remember that Vic's screen shrinks from 
22x23 characters to only 20x20 when using 
the Super Expander'* Graphic command, 

■ Here are two ways ot thwarting the piruics 
— more about others later. location 775 
usually holds a value of 199; so enter Poke 
775,198 or Poke 775,200 as a direct or 
program statement and it becomes impossible 
W I 151 any program in meniojy. 

Better still, Poke 818,32 corrupts the Save 
operation; the screen prompt refers only to the 
data cassette's play key .ind even pressing 
record as well will not transfer the program. 
Remember to Poke 775,199 and 81S,I33 to 
restore the List and Save commands 
respect ively. 

■ Dim and Data statements arc among the 
most common causes or bugs — and Vic's 
apparently imprecise error messages do not 
always help to pinpoint the real root- It helps 
to remember that an out-of-data error will 
misleadingly blame and identify the line 
containing the relevant Read statement. 

Almost always, however, the real fault will 
be found in the Data line or lines; a comma 
missing or replaced by a full stop, an absent 
digit, or some other discrepancy between the 
number of items the Read statement states 
should be taken on board and l he total making 
up all ihe Data linn. 

Likewise, if a string is wrongly 
Dimensioned, the error prompt will cite the 
first line to call the variable concerned and not 
that containing the DIM statement itself 

■ Still on Data statements, some Vic 
programmers get annoyed at Vic's apparent 
inability to accommodate punctuation within 
them — a facility that is often useful when, 
say, constructing multi-clause sentences in 
adventure programs, 

Data items can include punctuation — and 
can even take the form of a single comma or 
colon — provided each is enclosed in quote 
marks. Try this example: 

10 READ A3 

20 PRINT A* 

30 DATA ■'.". ■;<'" 

40 GOTO 10 

■The wav program lines whiz/ by when jftM 
List, even when the Ctrl key is held down, it is 
no wonder that debugging the Vk can be an 
even more brain-blustering experience than 
ever. You can watch your program lines 
building before your eye* with the direct mode 
statement Poke 37879,0 and Return before 
Listing. 

Holding down the Ctrl or Shift key slows 
the scrolling speed even more. Poke 37379,69 
restore* normal operation. 

■ Have you ever envied those colourful title 
screens used in commercial programs and 
thought to yourself, "There but for my 
3.5K . . ."? Then you must have overlooked 
Vic's ability to generate and hold a display on 
your TV or monitor screen even when you 
have executed a New statement and wiped 



memory clean. Type this: 

10 PRINT CLR 

20 PRINT SPC 12001-YOUR TfTLE SCREEN" 

40 NEW: END 

Type Run arid hit Return — now List and 
you will see that memory is empty, ready for 
the main program, perhaps, which can be 
Loaded in the usual way. 

Only, did you notice how the Ready prompt 
spoiled the display generated by line 20? You 
can lose it by adding the following line: 
30 PRINT" CTRL WHITE" 

Hit Stop and Restore to return normal 
visibility. 

■ I he polentul ot Vic*s £rnpht<.' set is easily 
underrated and underutilised; it is difficult to 
imagine how they can be used to construct 
anything more than a square-eared cat or 
cuboid loco. The following little routine may 
help to set your imagination alight: 

10 POKE 36879.25: PRINT 'CLR" 

20 CH INT|RNDIir2Ml I 1 

30 POKE 3687, CH 

40 S = 767S:C = INTlflNOn) , 12B) + 1 

50 P = lPgT(RN0! 11*2551+1 

60 X (NTlRNDMriOJ - 1 

70 N - INTlRNOil)**J4t * 1 

60 FOR J - TO 506 STEP N 

90 POKE S* 30720 + X4 J. C 

100 POKES + X*J.P;NtXT J 

HO FOR = 1 TO6O0NEXT D 

120 GOTO 20 

Complex magical images 

You can freeze any character^colour 
combination you particularly like by hitting 
the Stop key, then Run and Return to 
continue- If you are fortunate enough to 
possess a VCR, you can also videotape [he 
effects this program fleet ingly displays and 
view them again Later, as manv times as you 
likc- 

■ t ike to hear some alien vibes? Lay [his on 
your Vic: 

10 POKE 36878,15 

20 FOR X- 1 to lS;POKE 36S74.252X 

30 NEXTPOKE 36874.0:GOTO 10 

Or, to back up thai brilliant Chopper 
program you are just about lo write: 
10 POKE 3687B\15:FOFTX = 255 TO 128 STEP 

12 
20 POKE 36877, X:NEXT:GQTO 10 
TO save you the chore of updating the colour 
code location every time you Poke a character 
into screen memory, set up these variables at 
[he beginning of any program needing them: 
10 SC 7660 CC SC < 30720 

The number 30720 it, of course, the 
difference between the first screen location — 
7680 — and the first colour memory map 
position — 38400. 

■ Another wheeze to give those pirate* 
problems; drop this line in early in your 
program: 

10 POKE 80e,PEEK(80B)*2:POKE 37160, 
PEEKI371S0IANO 127 

This serves to disable the Run Stop and 
Restore keys, thus making Lift and Save 
impossible to execute. To restore normal 
operation, enter this line: 
90 POKE B08,!PEIKt808 2:PQKE 37150.PEEK 
Q71501OR 127 

■The only trouble with Pokes which disable 
certain keyboard function;, in a bid to combat 
plagiarism is that they can be identified and 
wiped by simply Listing the program before it 



is Run, There is a much better way of 
safeguarding your programming secrets — 
remembering that just one line of novel or 
ingenious technique can have a value much 
greater than its application is just one 
particular program. 

First, List the program you want to protect 
and select the first line for attention; perhaps 
one containing some crucial Peeks and Pokes 
or formulae. The only qualification is thai it 
must contain fewer than 17 characters — 
including the line number and any spaces. At 
the end of the existing line, add exactly this: 
:REM'" 

That is, a colon hard up against the final 
character of the existing line followed by Rem 
in capitals and two quote markv There should 
be no spaces between these six new characters. 
Now hit Return, 

Next, cursor back to the space immediately 
following the new line ending and hit Del once 
to remove the second quote marks. Now hold 
down Shift and press the Inst key precisely 22 
times. Release Shift and press the Del key 
preciccly 22 times Now hit Return. 

That's all there is lo it. Clear the screen 
and List the program again. You may see your 
newly-protected line appear for a traction oft 
second and then vanish- The same will occur 
whenever n b Listed — even if this doctored 
version of your program is Saved and Loaded 
again — so do not forget to keep your own 
copy of the unexpurgated Listing. 

You can, of course, repeat this procedure 
with as many more lines as you wish — 
provided none of them exceeds 17 characters 
in length. 

■ waii is a much less long-winded version of 
Gel, with ill imply quotes and all the rest, but 
it works with only a couple of keys. One is the 
Commodore flat key, as in this example: 

10 PRINT "TOUCH C ■ KEY TO CONTINUE" 
20 WAIT 653 ,2: WAIT 653,2.1 
30 PRINT OK CONTINUING" 

Substituting Is for the 2s in line 20 will 
allow you to use the Shift key instead — so 
alter line 10, too, 

Touching any other key when this routine is 
called — including Run Stop — has no effect 
— a buill-in mug trap. 

■ Some more keyboard tricks worth keeping 
up your Qwerty P MOO noi only 
disables the Run Stop key but also makes your 
program indecipherable if Listed. Restore 
with Poke 808,112. Knock out ihe keyboard 
completely with Poke 649,0 and make n live 
again with Poke 649,10. If you want a cursor 
Hashing wiih Od Hltmafla the way it does 
with Input, Poke 204,0, The usual value is I. 

Poke 211 with any number between and 
22 to set the cursor's column position, and 
and 23 if you want to Poke 214 with a new row 
location Only the space bar and cursor 
controls offer auto repeat the way Vic comes 
out of the box. But Poke 650,255 will make 
every key repeat faster than a bowl of radishes; 
Poke 650,0 disables this facility. 

■ Stan enjoying some screen acrobatics with 
the locations which control Vic's display area. 
Location 16864 usually holds the value of 12. 
fry (his: 

10 FOR L^ 12 TO 65 
20 POKE 3636-1. L :NEXT 
The screen "s vertical position is normally 
(Continued on p^O* ISti 



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(continued tram page M9J 

Poke 36866,150, Tinkering with this value 

will also produce some interesting effects. 

■ liuroduung a reverse field character or 
string is an easy matter within Print statement; 
just a question of holding down the Ctrl and 
Reverse On keys. But when you arc Poking 
characters into screen memory, simply use 
Poke I99J to get into reverse; Poke 199,0 to 
get out of it. 

■ It is often reassuring if responses to Input, 
Get or Wail staiements are acknowledged with 
a satisfying bleep. It is easy to add this facility 
— preferably in the form of a subroutine, if it 
is to be used several times in the course of a 
single program: 

10 IF PEEKIT97K -&4 THEN POKE 36878, t& 
POKE 36876,232 FOR O 1 TO 10 NEXT 
Add another colon and Return if used as a. 
sub-routine. 

■ Tung Peeld.197) to lest keyboard input from 
any of the four function keys has one big dis- 
advantage; the value returned is the same 
whether the key is Shifted or not — that is, 
fl/f2 answers Peek* 3 Q 7) with »j fVft with 17, 
B/fo with 55; and 17/fB with 63. The way 
round this snag, so you can make sure of all 
eight keys, is a different form of statement 
using the keys 1 ASCII values, l*c tins 

10 PRINT "(CLRI ;GET K*:IF rv* ° CHft*|l33l 

THEN 30 

20 GOTO 10 

30 PRINT "YOU PRESSED KEY fl 'END 

You can icst for any number of function 
Keys in the imc statement, using ihe 
appropriate ASCII value for each. These arc; 
fl, 133; f2, 137; f3, IM; f4, 138; f5, 135; ft, 
139; n, 136; and IB, 140. 

■ One simple Poke will put some speed nnm 
your programs, let you zoom through screen 
editing, and allow you to build graphic 
displays much quicker than usual Location 
37159 normally holds a value of 72. 

Slowing down the clock 

Anything below this, down to Poke 
37159,10, speeds Vic's internal clock and 
everything governed by it — including the 
cursor flash rate. Conversely, Poking this 
location with values up to 255 will slow down 
all the complementary processes. 

■ When studying or keying Hstingi 
reproduced in Your Computer and other 
publications, do not make the mistake of 
confusing the proper statement CLR with the 
abbreviation for a screen clear properly shown 
in square or curly brackets — (hat is, [CLR j or 
jCLR} — and which appears on-screen as a 
heart shape. 

The ilattmtnt CLR is something else 
altogether; n serves to wipe any variables, to 
restore the Data pointer to the first item in ihe 
queue, and to "un Dimension' any arrays; all 
functions which are automatically performed 
also whenever Load, Run or New is executed. 

■ Direct mode statements or functions can 
be useful during program development — for 
eJiampIc, to test the value of a particular 
location in a program temporarily halted with 
a Stop. 

Better still, you can string several direct 
mode statements together in one line using a 
colon to divide them, just like you would with 
a conventional numbered program line. Here 
is a simple example: 



10 POKE 36878.15: POKE 871.0: POKE 
3687.1, 

Hit Return, Run and Return again. Now 
tvpe — with n« line number — ?PEEK 
36878:?PEEK 871:?PEEiK 3637 and hit 
Return once more. The new screen display 
will confirm the values you Poked with line 
10. Do noi undcrcsiimale ihe value of this 
facility. You could, for example, use it as a 
kind of What If . . .? statement in concert with 
an offbeat line whose effects you wish 10 test. 

■ Try experimenting with Vic's screen width 
jnJ height to produce interesting graphic 
variations. Poke locations 36866,16 and 36867 
with values from 16 and 32 upwards 
respectively; the proper values are 150 and 
174. You will have to execute a screen clear, 
Mj 

■As a fundamental step towards faster pro- 
gram execution, use Print WMfHHflU wherever 
possible m preference to Pokes, avoid If 
Then . . , Gotos, and never type the 
superfluous Let prefix when labelling 
variables. 

■ Slumbering your lines from I DO and 
thereafter in increments pf 10 may look and 
seem neat, but it is a practice that gobbles up 
bytes. A program of 100 lines numbered in 
that fashion will occupy 301 bytes in line 
numbers alone. But using simply I to 100 
instead will take just 189 bytes. 

■ Amu her use lor thai rarely used \\ 
statement is in programs, and particularly 
games, using a joystick. Given that it is used to 
move your craft or whatever around play fie Id, 
and to zap away at all those lovely user-defined 
invaders, it seems rather clumsy reverting to 
the keyboard to call another game. Instead, 
add these lines: 

20O0 PRINT "PRESS FlRE BUTTON TO PLAY 

AGAIN'' 

2010 WAIT 37137,32 

2020 WAIT 37137,32,32 

2030 RUN 

■ It' you are working on a household 
management or similar program, you may like 
to know about this easy way of persuading 
Vic-20 to display neatly whole numbers and/or 
decimals; it otherwise ranges them all to ihe 
left, which can be confusing and anyway looks 
ugly. Here is a simple demo of the technique: 

10 PRINT" iCLRf' 

20 INPUT "NUMBER?";N 

30 IF N » > 1 THEN PRINT TABH& LEN!STfl*< 

INTfNHUN 

40 IF N< 1 THEN PRINT TABIHiN 

50 GOTO 20 

■There is a method of changing by direct 
Statements the colour of your working screen 
il the standard — and rather insipid — 
combination of blue on white with a cyan 
border — Poke 36879,27 — does not suit your 
taste or your eyesight. 

To ring the changes, choose a new 
combination of screen and border colours; ihe 
127 combinations possible with their relevant 
values are shown on page 1 34 of the user's 
guide. For example, Poke 36879,1 04 generates 
a deep blue screen with a black border. Ooops! 
— lost your cursor? 

Just hold down the Ctrl key and press Wht 
or Yel. Experiment to find the mix that you 
find most restful and legible. Incidentally, the 
Rev keys will continue to function, and your 
new screen/text colour will stay put as you 



type and enter program lines, List and edit 
them. 

Only pressing Run/Stop and Restore will 
bring back the original. 
■One more way of seeing for yourself the 
iabulous patterns and cflects which Vic's 
graphic characters can generate so easily, 
Here's a sample: 

10 POKE 36879,24 :PRINT "fGLftf 
20 FOR L 1 TO 50SX - RNOH) 
30 IFX < 0.75 THEN PRINT ' "; GOTO 60 
40 PRINT"*"; 
50 NEXT 
60 GOTO 60 

Using any combination of graphic 
characters within the quotes in lines 30 and 40 
— and note that the closing quote marks in 
each case must be followed by a semi-colon — 
will produce a limitless range of effects; and 
the randomizer ensures that a different pattern 
is generated every time the program is Run, 
even if you leave the characters the same. 

Now add some colour to the Print 
statements too, as well as Rvs On variations 
and you could come up with the design for 
Kriftwcrk's next album cover 

■ When exploring Vic's mu^c-making cap 
abilities, you will doubtless use Data 
statements to store both tone values and note 
durations. Rui what yardstick should you use 
when, say, copying from sheet music? A fairly 
accurate base for music in 4/4 time is, one 
whole note ■ 120 jiffies. 

Keeping in tempo 

Use a larger number io slow the tempo, a 
smaller one to quicken it. But nuke sure thai 
the base number you adopt is easily divisible 
into values for half, quarter and eighth notes at 
least — and remember to alter these 
proportionally when you tinker with the 
whole note value for tempo changes. 

■ This iivclinc program Will produce an 
electronic colour swatch which presents every 
possible Lomhinaiion of screen/border colours 
and pauses at each; a useful utility when 
designing games screens: 

10 PRINT "(CtRf 

20 f OR A = TO 7:FOR B = O TO IS 

30 POKE 36879, 8 + 16 * A'B 

40 FOR 0-1 TO800:N£XT D 

50 NEXT B NEXT A 

■ You nuy be used to constantly checking ihe 
screen for a refreshed display incorporating a 
new prompt, but it is easy to forget that others 
may not he. And when any screen starts filling 
up with text and graphics, il always helps to 
highlight the latest prompt in the same way 
that the cursor draws attention to itself— with 
a quick flash, if you will pardon the 
expression. There arc a dozen variations on 
the following utility; type and Run this 
version and then improve upon it yourself. 
10 PRINT ' |CLRf 

20 PRINT SPCl20Ql"FLASHY, AflENT IT' 
30 FOR = 1 TO 800 
40 PRINT 'ICLRf 
50 FOR D = 1 TO 400 
60 GOTO 20 

These are just a few of the ways in wich you 
can harness Vic's sometimes idiosyncratic but 
always fascinating logic to bring extra value, 
visual appeal and entertainment to your 
programs; 1 hope they will stimulate you to 
devise some original propr.r 8 



vOun CCWPUtEfi, DtCtMBCn 1933 151 



mew tech 




BLASTEftMlND? 4 

A1 lirst glance Ml m<ghi SPECTRUM 48k C5.50 



seem to be |usl anothef ver- 
sion of a very popular game 
How wrong can you be"' 
True, the start is simple 
enough The Spetlrum picks 
a code ol numbers or colours 
*ith a selection of levels of 
difficulty — and myites you lo 
do the same You rtien take it 
in turns to guess each oihers 
code (rom (he clue supplied 
alter each guess An extrem- 
ely well written, last and very 
clearly displayed game with 
almost inevitable defeat 
I his was exactly as intended 
but unfortunately something 
went wrong During the 
programming strange uncom- 
plimentary messages began to 
appear on the screen A1 lirsl 
they were so tew they were 
not taken loo seriously but 

{soon they could no longer 

j be ignored Somehow the 
Spectrum had been given a 

| personality — a rather 
tous supercilious dislike- 

laole hateful horrible mind 




Side contains a version ol ine game 
compatible with the excellent Currah 

u Speech umi — even worse' 1 



a spectacular 

range of software 



Thtt Quasi of Marrairtd 

VIC 20 (16k ) £7,95 or Commodore 64 £7.95 



¥ 



A really challenging and 
enfoyatle adveniure wrrrten 
by a confirmed adventure 
addict who grew lired of the 
ease win which he solved 
other adventures mms^f Mill 
accept and act on sentences 
containing up to nine words 

The adventurer becomes 
Merravtd charged with the 
task ol finding, taking and 
then returning the magic 
Firestone of the Dwarves 
However, overcoming the 
many novel and original rial 
ards is no easy mailer. Care- 
ful and imaginative thought is 
required if progress is to be 
made and trie Firestone 
I racked down to the lair of the 
Dragon of Thargon Even then 
ine Dragon has to be defeated 
and the stone retrieved A 
compulsive, extremely enioy 
able and very user friendly 
adventure 




* 



COMPUTER 
MODERATED 
BOARD GAMES 



The original and completely unique two player 
games of cunning and strategy, strictly tor more 
demanding games enthusiasts, 

ijfc CONFLICT — a full scale military and economic battle 
demanding clear thought and decisive action. 

^ GALAXY CONFLICT — a complex battle for control 
of the Universe 



Each game: — 

ZX8T (16k) and SPECTRUM (48k) £11.95 

BBC B\ CBM-64, ATARI 800 £14.75 

Attractively boxed containing cassette, 
full sue board, pieces, maps, and 
tutt instructions. 

1 Gift $! 



Most games available from leading retail outlets. 
Prices include VAT. Post ana Pacing 



Mail order to: MARTECH HOUSE, BAY TERRACE, PEVENSEY BAY. EAST SUSSEX BN24 GEE 

Telephone: (0323) 768456 Telex: 87465 EXIM Brighton 




1S2 YOUR COMPUTER DECEMBER 1983 




THIS PROGRAM of a 6502 machine-code dis- 
assembler for the 48K Oric rakes 2K of uur 
program memory so a Basic or machine-code 
program can still be loaded. It can disassemble 
machine-code programs or ROM and is 
written in machine code for speed, tt will 
dawsemble considerably faster than many of 
its commeraal counterparts. Type in program 
1 — you can load it with CLOAD "Program", 
S then Ron and New followed by: 



OHIMEM*8FFF : lNK7r PAP£R0;CLOAD"" 
CSAVE"OISASMBLRV',A#40Q,E# 518 
Press play and record and New, Type in 

program 2 — you can load it with 

CXOAD'Trogram 2 ",S ihcn Run and New. 
Type in program 3 — you can load it with 

CLOAD"Program Y' t S then Run and New 

followed by: 

CSAVE DISASMBLR2 \A# 9Q00,E# 97FF 
The computer must not be turned ofT in 



between the list two stages a& the code from 
both is Saved with the final command. To use 
the program rewind tape and type: New and: 

CLOAD "DISASMBLRV 
and press play. The computer toads first stage, 
Then Run and press Play. The computer 
loads second stage. Then 

CALL #9144 
and stop tape. Contents of the cassette arc 
f continued ort page 157i 



Program 1. 

5 REH((«' H.SHACKLETCN. I9B3»» 

6 FEH<<<vPI»OBRAfU»» 
10 A-B400 

20 ftEADA* 

SO tFLEFTa<A* 1 2l-"«"THE*tf*RINTWIBHrt<A*,LEN1A#)~2>lBQT 

02O 

53 IFft*-"ENr>*THENENP 

60 C-VAL ("•"+*»> 

70 POKE A, C 

eo a-a+i 

90 BO T 020 

500 DATfl*»SUBl 1 AA f 29.tJF,e5 t 02 l afl,4fl,4*,4fl,4fi,C'?,Ofl,'?0, 

OA,E9 t OA,lB,i 

9,41 ,C8 

310 DATA91, OB, 00,03.69.30,06. 91 ,06, A3, 02 ,C9,OA,«K),aA, E 

9, OA, 18,69,41 

,08,91,06 

520 DATADO,O3,69,30,C6,9l ,08,60 

530 DAT A--SUB2, A9 , 24 , 9 1 , OB ,E6 ,04 , DO , 02 ,E6, OTS , A2 ,00, Al , 

Q4,C6,06,FQ,1 

O t B5,07 

540 DArAE6 r 04,DO,02,E6,O5,AL,O4,2O,O0,O4,EA,A3,O7,2O,O 

0,04,60 

550 DATA*«BUP3, 20,33. 04.A9.2C,C8. 91 ,OB,JW, SB, CB, 91, 08, 



560 T>flTA*«5UB4,20,33,(>4,A9,2C,CB,9l,oe,A9,S9,CB,9t T OB, 
M 

520 DAT A««5UB5,A9. 28.9] .00, CS .20,33,04,A9,2C, CB, 9 I ,OB, 
A9, 56, 06, 91,0 
8,A9,29 

580 DATACB,91,08,6O 

390 DATA»«BUB6,2O,9B,O*,A9 1( 2C 1 ,C8,9t,0e,A9,39,CB i , ?l ,OS, 
60 

60O 0ATA**SJB7 , A9 . 2B , 9 1 , OO ,C8 , 20 , 33 , 04 , A9 . 29,08, 91 , 06 , 
iO 

6»0 DATA««eUBCONVERr l C9 1 4 1.B0.06, 3S.E9.JO.3a, BO, 06, 36, 
E9.41 , IB, 69*0 
A,OA,DA 

620 BATAOA,OA,60 

630 DATA**SUBe,A9,?4,9I.OB.E6,O4,DO,O2,E6.O3.«2.00,Al, 
04, IB, 4.9,01 ,C 
9. BO 

A*0 DAT ABO, 13, 65, 04. 95,07, A3, 05,69,00,20,00, 04, AS, 07, 2 
0,00,04,18,90 
.19 

650 DATA49,FF,69,OO,B3,O7,AS,O4,3B,E3,O7,BS,O7,A5,0S,£ 
9,00,20,00,04 
.AS, 07 
660 DATA20. 00,04,60 . "END" 



YOUB COMPUTER. DECEMBER 19B3 153 



M 



jui i crv 



MAST€RS OF TH€ GAM€ 



Finally!... A Full 
Floating - Point 

COMPILER, 

ForThe16K/48 
ZX Spectrum 

(and a Super 
New Integer t 
Compiler) W 




S41FTEKFP COMPILE H 

Thit mviii( product ■■ in* 'irit j»d only Ml Floating Pmnl 
Compile for rhr ZX Spectrum. H will KtnOt* all bul ■ lew 
commarKk on 1h* 5p*ctrum. which it approximately twtot 
the capaodity^f any Integer Compiler It will hand** full 
Iw li logac . wiogi and non muli^imariiionel anty* With 
*«, tfw onty trua lull onrnprter far tru ZX Spectrum, you 
can Bmn umal aU your lamxi'it* dASkC p rogram* WTO 
UatTiin* Coda. An unbaliBirebt* product tl the unbelwva&Uj 
pnce ot HJtt f 1AJS I 1 6X and *8X «««MAt on on* tap* I 

SOFTEK IS COMPILER 

Juna'i *CW mm ul Compiler* 'av*d about Ouf pftviPuf 

Super C Pul py I * new product 'rewn 1r¥y» Va4*v Software' 
lop of it] 141 of r* e rjriwTier>d*tior» Son:** an proud to 
announc* lh*t thaw new Integer Compiler km eommnnoned 
Irom Martin lata* ol **¥• Veil**. ru*ir*j garrttd eicluani* 
right! to- thatr I mager Compiler. 

The Soft**. IS Compiler n Eh* ultimata tn Iniaoar 
CompMart lor trw ZX Spectrum f ol lowing the tmmenai 
fcLXaai of ouf Supvr C irileatr Compiler In <* toll in* only 
utility lo hav* mad* it mid 111* Top fan' charMi Itw IS 
Compilar it men befw It Kja t u N itt ing handling and •">"» 
•King tapaoHi'iiat funhk* ita eomtantoni and lull INPUT 
laolittri. **ectly m you *nrov hi BASIC Our 'emou* 'NCM' 
Alternant annancamanti to BASIC are in th* IS Compiler 
loo, allowing fcjCh teaTurei *■ M H*» graph m and in* antry of 
Machine Coda ajDroutmei LiW.th* FP Compiler m* IS 
copter *i« compile mbroutinei can be used eatily jaongpdt 
BASIC, and can compd* tod* W nnuatly any gnfn Hatt 
eodrett tn RAM LrrtlAr Super C, bolh ol our nrm Compilerr 
mil allow MP to 1(HC of BASIC run* eompil#difi*48K 
ZX Spectrum. 



Far tn* f talfft. mpft taaturB-ledan Integer Compiler on th* 
merUl ii heata b* ih* Soft**. I 5 Compi let •■ |uV CS96 
(1&K and *BX vtivoni in on* tap*! 

THE SO F SYS SYSTEM 

Ouf re»od about Sohyl Svttarn dI utilnna, n now Eompt*la 
with tN* addition of SOFSEW ovr tup*rblv wgit^aaajnad 
Ed.ior Aaarmbuj* ior th* Satdair Sptctrum h Faacurat 
tantaatK 'liar f >w rtJm *a j ' twrlti hill arror rapoml, 42 or 3} 
column t en i n twmat HE LP lariNtv. iJHai'wva labelling 
fttfturrt and tupar faci Haamtitr Unfaaaiabaj at onhr tB f»5 
Sup* Monitor SOFMOM. Mill onry CV«6 

Our uparb TpOttM. GtaphlO KM md famarkaMl 
Manarhay tu**r oaf mad try* p*oofam» *r* Kill availatM* tor 
iuit E5 9Saac*i 

WARNING CONDITIONS OF SALE 

AH Sortat Softwan « told itftttly itxorOing to our tarmi and 
condrtkorti of t*W. cop«rt of which an* tvariaM upon ntqutat 
Softak Compilan ar* told on tna condition rtiat, if thry ara 
marl » craatt I product told commercial ly for f inancuil g*>n , 
(h*n th* fad that rh* p»otkjcl mi ematad wntr a Soft:** 
Compiiar muat Pt accradiiad t laar ly >n botti advanting of 
tha product and on th* «Kt*nor ol th» packaging ot thai 
product, Marl l umn . promotional mai»r>aii. tic 



All Soft** Software eprnm with a parprtual guarant** 
ShOuW it *var lajai in load ratum it tor a raptaoamant If (tw 
tap* •How* wgrn of phyac* 1 darnag* than plaaat anclOH 
£ 1 ,50 id come com 



cuWPL E f E THIS COUPON AMO ttC'LL BUSH VOU 
SOFTEX-S FABULOUS NEW SOFTWARE I 

SQFTEK FP COWPI LEFI O f TB 9S 

SOFT EX IS COMPILER OCfH 

SPECIAL INTRODUCTORY OF FER OF 

BOTH FP AMD IS COMP1LF «S IN ONE 

PACK AGE ai34J» 

SOFSEM Ofsftfl TOOLKIT QE5 94 



^K 



SOYTf K iOfTWAfK 

1 ?t3 HENRIETTAS THE E t LON0ONVVC2 

lar 0«-2« 1*22 



SOF»»0N 
MASTER KEY 



CD(5»5 
CD £5.95 



GRAPHICS XIT QCSM 



Ptaaaj aand ma Hi* Sortwani m tcMd 

Total truqua/PO. *ndo**fJ I payabt* to "SOFTER' 

PLEASE SEND ME A CATALOGUE D 

MAIM ». — ^^-— — in ii- . ... i- 



ADDHiSS 



SOFTER SOFTWARE 

13/13 HENRIETTA STREET. LONDON WC2 



SOFTEK INTERNATIONAL LTD. 
12/13 HENRfETTA STREET. LONDON WC2 

TELEPHONE : 01 240 1422 



MASTERS OF TH€ GAM€ 



WARNING' AH pn\rfTVf m hm *ccor&ng to 
Cap** at whtcft mtm *\ Mi iatm an r* a, m a t 



Many of our title* for (tie Specuum, Dragon and Oric ace available 
dt selected: branches of the following Boots, W.H.Smith, Mentis*, 
Ljifcy's. Spectrum Group. Lightning Dealers, Oixons, Tandy Deafen 
& Selhrrigci ji well js through our nationwide dealer network. 
Alternatively fill out this coupon and we'll rush you your Sofiek 
game by return of post I 

All Softek software Comes with a perpetual guarantee. Should it ever fail 
to load return it for a replacement. If the tape shows signs of physical 
damage then please enclose ft .50 to cover costs. 



><M 



1 Ali.IV 

I HMMHIIU* 



flft 



SOTTEC 



■~l 



1 ntcimvm OMif 

I ■--'. ■ B« HdHH 

I mam rI c*i» **u 
'"CiiW "at* 

I aptCThwirriuTm 

! wnotrittPWtJOiMii (■■»» 

1 Hani if J t~h ii luHII 



•oeaoirt 



EMUOOaH 

1*TN#fK 
IKKTfl* 



<l» 



is* 

net* 



nEMflWWElUTAKUl 
FlIMtfGttWIDntoiP «ft4 ■«*• 

»*»*¥ iccuuiMfi uttttts m m 

PfCTftM 



I 



«m» 



SOFTEK IKTERNATIO* Al L TD 
tM*MIMl|TTA»Tlt||T. 10*00* "CT 




Old* Code- 15G30 
Chutlue E«fl CC « 
ByAifF our 
favourite arcade 

game «o» m« 411* 

Spectrum 




Tram emC5 95 
By UtWTHM. i V 
h»gti tew) c*r VV 
Chaeeforafiy 

Spectrum 




Order Coda 45096 
Monetaea. O 
By Soil*, 
firing tread* garni 
f eh th« Dragon 32 



Order Coda 3BQJ7 

FrOttCtOf r7.9D 

ByCkiickadVa. hi- 
tee arcade game 
for your SB CB 




Oder Code 36022 

watHy Wmm 

re so 

By imagine. ■ hi 
rM DUdt gam* 
•prim/VICaO 




Order Cm* 15024 

Train Game W 95 

By M«roiphere. 

en enteriajnetg 

•read* game for 

any Spectrum 




Choose any 3 
for only 



Order Co*) 

Nitltwo* AT: 

By Hewtoo, 
an Air 
Traffic Control 

vmuiiood lor any 
Spectrum 




Orttor Cor*. 30029 
Huit*ert6» 
By Bh*b1e &ua, a 
rw rat gam* of 

tnookar or pool for 
ihe Commodore 64 




Order Code: 30063 
Qrirfrunne*64 

fly Litmuoh, our 
favour* arcade 
tor ihe 



gam* lor 

Common 



ora64 





Order Code )S01S 

Ward Proceeaor 

fS95 

By QumAiiIv*. a 

Word Proceaaor 

for arty Spectrum 




Order Code IBOtl 
J*i PacH f 5 95 

fly Ultimata, ah. 
raafaatmwing. 
arcade game for 
•Try Spectrum 



Ot-CKBrtv* 





Order code 46031 
Mined Out £5 96 

By OuickwrVB. a 



game lor your 
Dragon 32 



EACH( + P&P*) 




Oder Code 
36006 

Coemeada to .96 
By flog By*. ■ 



game for any 
VIC 30 



m®& 




Oder Code; 360*9 
Arcadia f5 50 
By Imagine, a fait 
moving arcade 
game for any 
VIC 20 Highly 



Oder Code 200*3 

Dictator f5 95 

fly Bug Byte, an 

edvemiji a game 
for Ihe 16* Sffll 




Order Code 4QOM 

HopparfBK 

By PSS. a v*r*o^ 

of the popular 

arcade game for 

iha«SXOrie 




Home _ 

Computer 

Software 



Here's the best offer you'll find for your home computer . . . Buy 
three Uptt for only 99 pence each and save up to £23 SB on 
manufacturer* recommended prices!!! 

We offer the latest titles, some of which will be available from us before they 
axe in the shops 1 Whatever your interest, you have our assurance thai well 
have something for you . There Is no obligation to buy more than six tapes 
from the hundreds available during your first, years membership, all of 
which are offered at discounted prices You will receive a copy of Software 
Club Review every month which will give unbiased evaluations on all our 
new software 



Order Coda: 



OTHER TITLES AVAILABLE 



P*WT1» 



ftaaa treat 

lit*} Mai 



Meaner XJb*l*> f } It rtl/U«j 

PHI 

mm* greefeu Put iut.M T i n » unci 

HU1 bull Cneni lArcimi fl IS Hid 
Ht74 k»*,v4% [Areata* (3 » I Htt 
Ml 4 Pmhi trill IA<tn«m u r*> (3 I* «K' 




Oder Code 
40022 

Paint-* fS 95 
ByAo-F. ahiraa 

in game for 
tha4Btt0r<; 



^JJ^K*-' Cheea game 

16K VIC 20 



lor 




Order Coda 2S02S 
Dodgem f* 96 
9y MS. ■ (ait 

mowing car chaaa 
for your BBC 



Oder Code 26044 

Graphic* Pack 

E9.50 

By Bug- Byte, a £ 

graphic* utJitv 

pack to gat the 

moat from your 

BBC-fl" 




»iaf 
•fiaaratlaSraatarailtli 
"aneaalf 



f?li 



i 



4Ml| Hem* Intel ifc tatai N » HI ill 
mm irai 0*»«*r*> ti m Mm 
•SMI Cettiaee* Ifcieeai ff M *H1 

in r 

MM Speu feat** UVaaM R H 
mOH* I Cum IMaialBWl fltl 

win 

mm *tiei»c la/teear ft tSUatt 

MS 7 CHCM Saatcfti (Areata! (f Jt laaal 



HWVii'o'liuhida 
MrlPfacMMrtMertlJI 
a»f liar T f at Het Mwai f I M 



We give a no -quibble guarantee that should you 
have any problems with any software, it will be 
replaced by return of post 

All you have to do to take advantage of this 
fantastic offer is to select three tapes for your 
machine from those shown on this page and 
complete the coupon Please don't send any 
money now — we want you to evaluate the 
software in the comfort of your own home before 
you decide. 

We only offer genuine manufacturers tapes and 
would like to inform you that copying in any 
form is illegal 



To: The Software Grub h Salisbury Square, 
QU H«tfl*kJ\ Herta AL9 5AD 

Pt i a il KC«pt my application and mraj me a* a nwmbn of The 
Software Club and send m* B* Introductory upn urhote number* I 
have writ ran in ihc bozn twlow for which you thai! charge nv* In 
due course shnuVJ 1 0>eidf (r.k*epfhr%oftwan;(plu»a!ntalof £ I 03 
for pnsiage h packr.g' i Ef I »m not cnnnpleleh/ %ett*fl*d. however, t 
may nttum the tapea intaci within ten day*, my membership will be 
canedkd and I wtll owe nothing A* a membrr I need not taw a tape 
every month lor if I want no tape ai all). I can tay to on the form 
provided IwiH.howeve, chooae at least ftatapa in the fini year At! 
ronwanr n described in advance «n tie Tree monthly Software Club 
Review and *a offered at • d*tOwn«ed pnre I am dwi 1 6 yean, of 
age (Thtt appteaboei rnusi be f»m your parent nt guardian if you ant 
under 1 6 years old ) 



li-E jOFl ViiiE CLU3 

The Software Club. Salisbury Square. Old Hatfield. Hem. AL9 SAD 



WW™**** 








Addntu 




Poaarode 


Machine 




Mrmnry rar 




Ondai Ciai 


! 


1 


I 


1 



REMEMBER SEND NO MONEY NOW 



icQnunued from page lS3f 

shown on the cassette — use the slow side as 
this, is more reliable To nuke a slow copy use 
pencil corrections. 

After call #91 44 a prompt appears at the 
bottom left of the screen as >. Then type in 
ihe hexihiecim.il address for disassembly: 
OKJO 
0400 TAX 
The first Unc appears automatically. To 
advance line by line press space-bar for each 
line. For rapid disassembly hold down space 
bar. 

It poo wish to disassemble another address 
press D, a prompt will appear as above and 
the same procedure is followed. If you try to 
disassemble 0300-0400 - inclusive" 
strange results will be obtained as this is the 
location of the physical I/O address. 

To exit from the program type ,\ 




ProgrWft 2, 

5 REJ*U<X ■ H.BMAOLETOH. I983»» 

6 A£*t<<:<PROGftA«2 
IO A-69O00 

20 READAf 

30 IFA*-"e*«D- , TMEMEND 
32 OVAL (-•***! 
54 PCTEA.e 
60 A-A+l 
70 OOTDZO 

300 DATAA2.DI ,B6,OO.A2. BB, 86,01 ,A2, 1A ,A0,26,Bl , 0O,48 , B 
8, DO, FA 

3lO DATAA3,i:*i>. JB .E9 .28.85,00, A3,0 I .E9,CM>,BS,0l , C8.68 , 9 
1,00,CO,26,00 
,FB,A3,00 

320 DATA IB, 6?, 50,65, O0.A3.OI ,69,00,83,01 ,CA, DO, D3, A3, O 
0,3fl,£9,28,fl3 
,OO,AB,01 

330 DATAE9, 00,83,01 , A9 , 20, C8.CB , 9 1 ,00,CO , 2b , DO , F 9 .60 
540 DATAA2.Be,B6,0©,A2.BF.B6,09,20 1 O0,90,A0,00,AV,iE,9 
l,OB.A2,04 

530 DATAaA,4B,9fl,4B,20,FB,C3,B5,02.-fl,Ae.fefl.AA.A5.02,t 
8, ?t. 08, 20, A? 
,04,85,03 

560 DAT A*B. 48, A5, 02, AO, 04, OA, 26, 04,26,05 ,88.00^0,68, A 
e,CA,DO.Db 

570 rjATAA2,9^ 1 BA,0e,A2,00,AI,04,A0,O4,J8,6l,0«,9O,O2,E 
6, OB, 88, DO, F6 



580 [>ATAe5,i<A.2O,0O,90,AO,O0,A5,03,20,00 t 04,A5,04,20,0 
0»04,A2,CI ,86 
,0fl,AO,0O 

980 DATABI ,OA,91 .OB.CB.CO, 03 , DO.F7 ,BI ,0A,83,06,C6 ,06*C 
8,81 ,0A,FO,54 
,AA,CA 

6O0 DATAFO.tg.CA.FO.aP.CA.FO.aCCA.FO.Si.CA.FO.SA.CA.F 
0,37 t CA,FO,3A 
,CA,F0,3D 

6tO 0ATAA9.25.^| .■.B.A'*.74 1 C8,9l,r*.E6,O4.DO,02,E6 t 05.A 
2,0O,Al,04.20 
,00,04,18 

620 DATA90. 27, 20,33,04, 18. 90, 21*20, 59*04. IB. 90, 18,20. 6 
7,04,18,90,15 
,20,75,04 

6 JO DATAIB 1 9n,.iF , 20,BD.< H . 18, 90,09,20. 9B.O*. IB. 90,07, 7 
0,BE,04,20,F8 

640 DATAC9,20,r0,0C,C'7 t 44 1 F0,Cia,C9,58,t>0,F»,6O,4C,4ir,9 
0,66,04,00,02 
.E6.03 

6SO DATAA2, BB,B6, OB, 4C,8C,90, A?, HO, 86, 00,02,88,86,01, A 
2,&2,86,04,A2 
,91,86 

660 OATA03,AO,00,B1 ,04,V1 .-O.CS.CO, 13,D0.F7.4C,4F,90,6 
0,20 f 4D,7E,S3 
,48,41,43 
670 DATA4B,4C,43,34,4F.*E,2E,31 , 39, 38,33, "END" 



600 DATAADC32 > FlQR32 4*''' ,, lO,BVS2a,AfJC?6,^ , >' 5 iL>. n, ' f ' , lO,"' - >"'l 
0,ADC2J.80R23 

6lO rjAtASEllO,fllJC34,'>r»lO ( l ' J *^lO,-'- , - , |.>.AQC3Jl.|!W1833, ->-*-' I 
O,'?^l0,BTA25 

,->->-?io 

620 DAtA^''''lO nr aTV22 t BTA22 t ST*22, 1 >r'IO,DC¥l0,1"l0,TKAl 

0,T"10,STY32 

,STA32 

6SO 0ATA3T«32,??7I0t8CC28,&TA26,-"7|O,7?7IO,8rY23,BtA2 

3 t *TX»,?r?I« 

.IVA10 

640 0ATASTA34,TlteiO,''"10,'*"10,5TA33 # "*- , ^10,-"^iO,LD¥2 

I ,LDA23,LDX21 

,?r?io 

630 0AT«L-D¥22,LDA22.LDK22,rr?i0 t TA¥10 t LDA2l,TAJ(10,-?-"l 

0.LDY32.LDA32 

,lD*T? 

660 OATA'"''ia,8CS2e,L[]A26, , >7?lO,'7?^lO,LD¥23,LDA23,LDX2 

4,77TIO,CXVIO 

670 OATATSe IO, *7rJ*0,L.DY33 ,LDA33 ,LDX34 ,->-"10, CPY21 ,CHP2 
S»rmO«77T10 
,CPY22 

680 0ATACW>22,DeC22,' T '» rl lO,lMVl0,C«P2l t 0C)(l0,7-"l0,CI»Y3 
2,CHP32,0eC32 
, MO 

690 DATABNE28.CMP26 t -^"»l0, , ^"l0 t '»^ , »10,C»8*23,D€C23,?-'^l 
O f CLDl 0,09*34 

,mit 

TOO PATA"»-»-'lO,-'??10,C«PJ3 l D€C33 1 ' > iO^CPKZt , 6BC25,^~>1 

0,CP<22,7?'10 

, SBC 22 

710 DATA1NC22,^^1«.— "MO.SBCZl .NOPIO. IttX] <>, CP*32,BBC3 

2, [MCS3«9TM0 

,BE028 

720 BATASBC26,?-"10,"- , 10, , «->10,SBC23 I INC23, ''"IQ.SEDi 

0,SBC34,*»791Q 

,^710 _ 

73Q DAT A?"*-" 10, SBC 33. 1 HC3 3 . ^ ~> 1 ■ 



Program 3 

5 REH- ■ ■• ' H, SHACKLE TO*i. 1983 >>>* 

6 R£H- < ■ ■ Fff06AAM"5 
8 P , «#930O 

10 F0RA-OTCJ755 

20 AEAOA* 

30 FOfiB-1 r(JTiPC»EP*A»3*&- I . A&CltUD* («*,B,1 I > -ASC< H A*i« 

AS* NEXT 

40 FOfiB-4Ta5iP»EP*A»3*B I , VAL IWI 01 <A«,B, 1 I >! NEKT 

SO NEIT 

BOO DArABRKlO,ORA25,??'lQ,^'tO,^"tO,rjRA22,A8L22*' > *'^l 

0,PHPLO,OAA21 

ABL. tO 
5IO MTA^T«|O,'^l0,CiRA33,ABl-32,^-lO.BP1.2B,0RA26 1 7-'-'l 

o 1 7r*io,- r '"io 

,0RAZ3 

320 DATAASL2J.-'-"IO,CL.C|0,0«lW4,''^IO t -'-'-'10 t ?-"10 t rjRA3 

^ABuSS^-JO 

,JB832 

530 0ATAA*ir>25,' > 1^JO,-^' T IO.8IT22,ANO22,«a.22." , "*"'10,Pl.Pl 

,-»"^>IO 

340 0ATA»tT32,fl«032,l»0L32,-' - *'»O,8M12B,AHD2£..''^'*lO.-^'>l 

0,^""tO 

530 DATAAMJ23,f«lL23,^''^10,SECIO,AND34,'""'IO,'-^10, - '' y ' , l 

0,AMD33,R0L33 

^■j-Tjo.HTriO 

560 DATA£rjR23 t '- 1 'i0,'»'"10 # ^->'»10,E0il(22,L8n22, -> ^ > IO,» 1 HAl 
O.ECM21 .LSftIO 

,?TIO 

STO DATAJMP32,EDR32,L3l32.'"?l0»8VC28.ErjR:26.-' - "10, - »^71 

0,?t?10,E0R23 

,LB823 

380 DATA""- , t0,CLIl0,E0R34,-»??lO,-'^lO,-'- , -'lO,Eait3S,LSft3 
3,*>^ , ?tO,RTSlO 

.ADC23 

590 0ATA-^'IO,'^^tO,^*^lO,AOC22,ROR22,^"lO # PCAlO,AOC2 

1 ,80810, 'I^IO 

,J»9?37 



YCXJB COMPUTER, DECEMBER 1983 1&7 



Aji lNTERfcl'FT is when the computer stops 
working on the mainline program — for 
example, etecuting your program or waiting 
far you 10 type <n something — and jumps to 
some special code in the operating system to 
increment timer?, update ivsrem variable like 
joysticks and then returns to the mainline 
program, unaware that it had even been 
interrupted. 

In Britain, there are 50 interrupts per 
second or one every 1/SOth of a second. On the 
Atari computer, there are vectors — 2 byte 
address — which can be used by the user to 
divert the interrupt routine to hi* own routine. 
His routine should (.hen hand back control to 
the operating system, which will then carry 
out other interrupt t«ks such as loading 
hardware registers with shadow registers. 

Vertical Blank Interrupt 

The Vertical Blank Interrupt VRI - is 
so called because this interrupt occurs |ust 
afler (he computer has drawn the screen. The 
screen then goes blank ready for it to be drawn 
once again To create an interrupt you first 
hive to have your machine-code rounne 
somewhere in memory, Tor mstsnee Page six 
— 151-6 to 1791. Your code can consul or 
anything but should not be too long as the 
computer might start getting impatient by 
shaking up the screen display Do not end it 
by putting a RTS bui instead a JMP 9E462. 

You have to enable it 

Now you have to enable it Unfortunately, 
you cannot iu\t Poke the address of your 
routine into its appropriate vectnr $22V - 
since there is the risk of an interrupt vectoring 
through thai vector after you have changed 
one byte but before ynu have changed the 
second- The result will probably send the 
6502 into a totally confused piece of memory, 




REM ATARI I NTFRRUPTS: PROGRAM 1 

1 REM BY CHRIS LAM 
5 BOUND 0,0,0,0 

10 DATA 160,4,162,6,169,7,32,92,228,104, 

96 

20 DIM ACT$<11) 

30 FOR N=l TO 11:READ A: ACT*(N,N)=CHRt (A 

):NEXT N 

1500 FOR N=l TO 48: READ A: POKE 1539+N,A: 

NEXT N 

1510 ACT=ADR(ACT$) 

1520 XX=USR<6CT) 

10000 DATA 174,28,2,240,3,76,98,228,162, 

50,142,28,2,166,203,240,15,162,0,134,203 

, 162,6, 142,243,2, 142, 197,2,76 

10010 DATA 98,228,162,1,134,203,162,2,14 

2,243,2,142,197,2,76,98,228,0 



Luckily For u*. User* i* a special routine to 
Poke two bytes iflio a vector without the risk 
of an interrupt; it is called SetV'BI and is 
situated at $E45C, Register A should hold a 
seven, X should hold the high byte and Y the 
low byte. Y*25fi + Y should point to your 
routine; the 7 in register A (ells the operating 
system where to put X and Y. 

Type in program ] and srudy the two 
sections of code needed to get it going. The 
second program is rat he t more elaborate. Alter 
entering it, turn up your TV speaker and Run 
it. Past ZX Spectrum owners will no doubt 
recognise it. Just one more point on VBI's, 
There are, in fact, two types of VBI — 
deferred and immediate 

Deferred addresses 

The addresses I have mentioned up until 
now refer to the deferred type, The main 
difference is that the immediate one is 
executed before the operating system updates 
anything and the deferred afterwards;. You 
usually use a deferred if it affects the screen, 
e.g., colour changes but there is no reason why 
you can't have both working at the same time. 



1 68 VOUfi COMPUTER. DECEMBER 1 983 




Chris Law takes you 
through Vertical Blank 
Interrupts — what they 
are and how to use 

them on the Atari. 



The instructions for immediate VBI are: 

• Terminate routine with a SMPS E45F 

• Its vector is S 222,3 

• Make register A hold six . 

The Display Lin Interrupt or DLI is very 
special. Whereas all computers have 
something similar to Atari 1 ! VBI, the DLI is 
unique. Again, as with fine scrolling and 
display lists, all credit goes to Antic. In The 
Display Lists article in Your (*mtputer t you 
will have seen thai ihc most significant bit of a 
byte enable* DLL Well, what exactly is a 
DLI? 

The DLI enable 

DLI is an interrupt executed while the 
screen is being drawn. Therefore, when Antic 
comes acrosa a DLI enable, it will freeze the 
6902 and send it, through a vector — $200, 1 — 
to your routine. Actually, how far down the 
screen it is executed depends on how far down 
the display list the DLI enablefs) are. 



REH ATARI INTERRUPTS:PROGRAr13 

1 REM BY CHRIS LAM 

10 FOR N=0 TO 15: READ A: POKE 1536+N,A:NE 

XT N 

20 5T-PEEK <560) +PEEK <561 ) 1256 

30 POKE ST+3+3+11,130 

40 POKE 512,0:P0KE 513,6 

50 POKE 54286, 192 

1000 DATA 72,141,10,212,169,0,141,24,208 

,169,6,141,1,212,104,64 



If you have a DLI enable with Antic Mode 2 
— Graphics — righl after the IMS ope raids, 
then the interrupt is called while the second 
GR.O line is being drawn. As a result ihc 
changes made by the interrupt will not be seen 
until the third line is being drawn. 

The structure of your routine should be kept 
lo four stages: 

• The saving of all registers, whose values 
will be altered during the DM 

• Wait for Antic to finish drawing the 
current line. 

• Change appropriate locations, 

• Restore all registers and leave the interrupt. 
Type in program "i and study the 

appropriate code listing. In this program, we 
have inserted the DLI enable half down the 
display list and consequently it was executed 
half way down the screen. This time we are 
free to poke in the address of our routine as 
long as we enable the interrupt — Poke 
S4 284, 192 - afterwards. 

No unsightly border 

ST A WSYNC (J4282) will freeze the <tW2 
until the currenr line is completely pnnicd- 
This is so that we do not have unsightly 
border where the changes take place. 

Although we have only one DLI vector to 
use, it is not diiTiculi to achieve many To do 
this, make your first DLI Poke the address of 
the second DLI into 8200,1- Then the next 
tune it meets a DLI enable, it will vector 
through to your second routine and so on. 
Make sure that the last DLI pokes back ihc 
address of the first DLI into 5200,1. 

DMs must be kept very short and should 
only affect regime rs relate J io the screen e.g., 
colour changes. Anything else can be done 
with an ordinary VBL 

The next example — program 4 — demon- 
strates Atari's trump card, (he ability in 
put dozens of colours on to the screen at once; 
two dozen in this case. All the Antic modes in 
the display list have been enable. Have a go at 
converting it to display 1 92 colours in GR.8 — 
normally only two colours. 

Program 5 will show you have to combine 



REN ATARI IMTORUPISiNraiWI 2 

i REH BY CHRIS LAM 

2 REH lum if IV 9PEA7EK. 

5 SOUND 0,0,0,0 

10 MIA 160, 4,16?. b, 169,7, 32,W,rre,IM,*k 

20 DIM Atttlll) 

» FOR *■! TO UtKAD AtACTHN,IH«CHR*lA 

llttBff N 

1300 FW h-1 TO ITOiAEAO AittKE I33**N,A 

■ NEXT hi 

13 IP ACT*AOA(ACTtl 

1330 n«UBHt*CM 



1WCO DATA 144, 173, 141, 1,710, 1 69, 303, Ml 

.0,710. 17*, 78, 2.22*. Ci.rra.Il, 16*. 704, 165 

,37,4. 1*1,2*.?. TOO, 1B3.32.6.I33 

1O0I0 DATA JOJ, 1*2, 71. 7*0,6.200,1 17. ?>.*, 

74,41, 229, 160.0, I J?. TO*, 74, *?,6. 30, 1 71 , 3 

0, l«,23, 107.23. !«,». 171 ,30, 171 

10O7O DATA 30.IOa.73. 107,73. 108.30, 171.3 

0, 102, SO, 41, 100,81, 30, 107, SO, H, IPf',81,^ 

B, HI, 17, 7fr, 73. 01,73,91,73, 13? 

10030 DATA 73,100,3*1. 131. 38.81,12,76, 73. 

Bl, 73, 11, 23,10?, 73. 106, 30, 121.30,171, 30, 

16?, 100.171.30,171,30. 162. 100,121 



GR.9-1 1 with the other modes. The secret is 
thai with GR.0-8, location 623 (GPRIOR) 
holds bur GR.9-1 1 will hold GO, 128 and 192 
respectively. In figure 1 you will see the set-up 
on the screen. 

Write to hardware register 

You should always wmc in the hardware 
register. Each hardware register ha* a shadow 
register from where data is moved from to it\ 
hardware register every 50th of a second. 
Therefore if wr write to the shadow register it 
is permanent since thai value will always be 
located to its hardware equivalent. We have to 
write to hardware registers instead and the OS 
interrupt will reset them. 

For even deeper information, obtain a copy 
of Dt Rt A la rt (£17} and/or a copy of t he Awn 
Reftrtncf Mm (£17) and perhaps even an 
assembler/editor cartridge (£40) which is 
essential to understand Atari's hidden powers. 
Note that $ denote* hexadecimal ruimhcrv 



ft£H AIAftt iHlERRUF'TSiPnoeRAtH 

i reh bit cwts uw 

10 FOR t*-0 TO 28lREAO At POKE t336*H.AtNE 

IT H 

TO ST-PEEM5601*256tPEErf3611 

30 POKE ST*3, 128*44*2 

40 FOR N-0 TO 22lPO*E ST.6*N. IJOiNEIT N 

SO POKE 312,0lPQKE 313,6 

*0 POKE 5*286, 1<77 

70 POKE 712,10 

1000 DATA 72, 14|. 10.717. IfcS.JOJ. 201,230. 

240, 10, 2*. 103, 10, 133, 203, 141 ,20, 208, 104, 

64, 169, f>.H3,203, 141.24,206. I"4. 64 



R£H ATARI INTERRUf TStPROGftAPB 

1 «£H BY CHKIS iW 
3 GRAPHICS 4 

IP FOR N-O TO lOlREAD AlPOKE 1336*«.AtNE 

IT H 

13 POKE 633,0 

20 St-PEEMS60!t236iFtttM36li 

31 POKE ST*S,66:Pt»E 5T*6,2 

32 POKE ST*7,AiPt»F ST+0,134 

33 POKE BT+IA8 t fc3lP»E t*9,PEEVI3*0i iPO* 
E 1?0, PEEK (361 i 

30 POKE 312,0lPOKE 313,6 

60 POKE 34286, 192 

70 POKE 710,0 

100 POKE 87,0 

110 POSITION 0,0,- - ATARI INTERRUPTS- 

FROl YOuT Ctiavutrr * 

120 f 'YOU HOST BE PROUD OF VDUR ATARI N 

123 POKE 87, 1 1 POSIT ION 0,4 

ISO 7 »6|" HE ARE SDH IN OR.f 

140 7 44i ' BR. I ONCE AGAIN ' ■ - 

ISO POKE 87, 9i C-O 

160 FOR M-3 TD 176 STEP 10 

170 COLOR CiC-C+lilF C-1A THEN C-l 

ISO FOR 1-0 TD lOlPLOT O.tKllDRAMTD 74. N 

•IlHElT liHEXT N 

500 GOTO 300 

1000 DATA 72,1*1,10,712, 161,64, 141 ,27, 20 

8,104,64 



VOUH C044PUTEH DECEMBER 1 9B3 1 59 




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!CO YOUR COMPUTER. D£Cf MBIR 1 4B3 




Is Fruit Worm your task t* to move a 
hungry worm around the gulden which is full 
of fruit*. You have to guide him so that he can 
eat the fruiw *od grow to be an adult worm, 
but the trouble is there are rocks and the brick 
wall lo be avoided and the task of keeping your 
wary eyes on the time which is constantly 
ticking away. 

Save sections of memory 

First type in listing J and Save it under the 
name of INiT*. then type in listing 2 and 
Save it under the name of 'BFRUJT' on a 
different cassette. Run listing 2 and (he cursor 
should reappear in a few seconds, You must 
now Save the sections of memory which 



BBC 

contains the data for the multi-coloured 
character* i.e., the fruit*. To do this type 

'SAVE FRUIT 2DO0 + 65O 
wind the tape containing 'INIT' to just afief 
'INIT and press Return. After this type m 
listing \ and Save it after '[NIT and 'FRUIT 
before you run tt. 

All tbts must be done because the program 
contains quite a bit of machine code and thus 
could crash the machine if there u a mistake,, 
probably resulting in Bad Program, Those 
fortunate enough to have disc drives won't 



Itsting J 





"*»!*••■ Turn .rutfl.t 
twir w Tm **tii».» 



ii*«u»ia.iiT.iTT.Mi,ii.ii.iim>if*tirr^fwii 
1 tONtut M, !»»» I *». « 1 , 1 1 . 1 1 .umm.rmi n™.i' 

l*"l«' H»i»iOMi!V|i ».«*» •MatV*' 

Hn»»i«tl*«( ioiCwii wvini imiuiilta' 

I"»«l«ll»i 1HMHIO- ■ - «• •w*-« - 

i*w»i t«« < n I (MM | 11 ■ 
>nanii«1M><i}i-f L«n,- 

llMI4TTlllll>l-l •■«*.' 

*■»»• imi ■** i f ii - • i*. ■ 

inH|«Ti»H3ri IH,' 

wnir Ha4itw n«n *»i*ir*» ■;,:<! n*iiuci«i»-i> 
m th* p h i hp ts iMtiiM.'iinnMii . 

bbif p— m i nw* mii'im^iKudijiijpiiii'ii 
**# I ijii^ fili a l l« **4PP<lnt. ■* 

M4W. TO. ». 1*. I* 



mMua 

71 . 77* . 7« . ?* .*n . 1 I* , < 3», JS», PB ,711 
"»*I71 . 771 . 71 1 , m,7»l.t», IH,H,H,» 
«****! . 7*t . 1» . 1*. 1*1, l*t, l«t. HI ,■», n» 
41 niftJJl . »> .MB, *¥1. *»* . W. 174 .*£ .7*.*1 

4Ki«A] . «*. 34 . >4 .4^ . I -4 ,«r , J ■ » , JT! . 31- 

<*»«jn l i]i,rB < iis,ni . i<p*.i 99.1a1.11.1t 
Mt rnmi tl.TV ■"■>?. 7», M. llt.T*',1l .31 
.Wl .H.tl.7*T,l l»,*J,J».IJjfl 
>.n?.0.**.4*. P7«.UB.7M,**«.M 
-.m. «■.»•.»». I in. 17*. 4* ,4a, e 
M, IU.II, n].B!,Bl.l.»l,»! .711 

•■u«iun .m.te.idjAi.Bi. m ,h,<h,h> 

- J« * 7» .** j*! ,U . tl» . 1 1«, I I* 

"..'". m ,771 , tot , m , 71a , ns, n . n* 
r?.i .a.n.o. 1,1 . i, sj*. i, i,-i,u*,o 

- ".I .»,*.•, I*, I*. Itt.17*. -4, ■< , I . )M 

i« , 1 , i»i , -1 ,*, ■ >, 1 •*,•,<•.-*, i»,» 




have to go through all this but must make sure 
not to insert any extra spaces in the third 
program otherwise they will probably get a No 
Room message 

Now rewind the tape to the beginning and 
Chain the program When WIT" is loaded the 
title page will appear Press Stop on tape 
unless you have motor canto! facility or have 
discs — in which case the first program will 
load the main program at & 1 101). When the 
title page appears you can press Q if you do 
not want any sound otherwise press the space- 
bar to load the rest of the program 

The game will begin 

When TKITT and WORM' are loaded, 
the eame will hegm. In the middle of the 
screen you will see the worm'* head for i while 
before it starts moving — in the first screen 
there is a short hunt of music so if you have 
the sound off nothing will be happening for a 
while. This ran look as if the machine has 
crashed *o resist the temptation to pre» 
Escape In fact, this precaution applies to 
various other point* in the game where there is 
music. 

You control the movement of the snake with 
Z%X» ! and ( to move left, right, up and down 
respecttvely. If you manage to make the worm 
gobble up enough fruits before the lime runs 
out, the remaining time will be added to the 

tcftntintmrt on page ffiW 



VOUR COMPUTIR. DECEMBER 1983 tfll 




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Lfe 



: v 







USER SHOIV 



The show that attracted record attendances in 

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There are lots more exhibitors, who will be using 

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seminars, at which all the 
famous names from the 
world of BBC Micro 
computing will be taking 
part. Whatever your interest 
* graphics, machine code, 
interfacing, education - there 
will be a top expert 
speaking on it, (Saturday 
and Sunday only) 



TRY OUT for yourself the 
games that will be the top 
sellers this Christmas - and 
well into next year, 
FIND out about all the new 
peripherals for the BBC 
Micro - disc drives, 
interfaces, ROM boards, 
robots and second 
processors. 

DISCOVER why the Electron 
- the baby brother of the 
BBC Micro - has been 
hitting the headlines and 
why all the experts are 
tipping it to be the big seller 
of 1984, 



Westminster Exhibition 

Centre 

{formerly the Royai Horticu/rum/ Hoik) 

Greycoat Street, London SW1 
Thursday to Sunday, December 8 to 11 




Exhibitor* include 

Acorn Computer* Ahfticf |nsmim*n!s Advanced Memory SyMerm BBC 
Tekioftwu*, Bradford Office SuppJ*v Bucun Lid, C«mpul«»kw. CJE 
Mieroeomputwv C-Tadi, CWP Cfcayd T*c+imc Clan* Micro Suppkw 
Cumaiw, Commotion, Dwkflair Etanomabc. EdutAhoaaJ Computing. 
Ekcc Computet*. EJacttwwqutp. Educational Sortwai*, Ckngwy Soft. 
Golem. KirkUndi Computers. Kansas C*y Sy*t*rt», LC L (Ludmfki 
ComfHJt«r Auut«d Lwmingl, LowUnd [Wtigni. Log* Sain. Micro A«d 

Micro Pqwer, Matter ClUA MraovUK, M W 5y**m*. MireaMre Tool 
Company, Opus Supplies. O^Weal Computer*. Proteus Computing. P«* 
Soffttw* Supplo*. R H Electron** Supirriot Sohuan. SYSTEM. TwtfUw 
Computtn, SSgjkn Computer Services Watford tJectratiici 



GROUP 
BOOKINGS 



by S*" 1 



SK7 5NV 




off normal exhibition 
admission price of £3 
(a dult*) and £2 (children) 

The BBC Micro User Show 

I ItdN i Opt 1 1. Ihutstioy Ltetemtwr K 

10am fapm, Friday. December 9 

lUdin b]j;n, Saturday, December 10 

10am 4pm, Sunday. December 11 

We»tmlR»ter Exhibition Centre. 

Greycoat Street. London SlVl. 



off normal exhibition 
admission price of £3 
(adults) and £2 (children) 

The BBC Micro CJser Show 

lUitii bptti. I rujrbday. December 8 

10am 6pm. Friday December 9 

lOam 6pm. Sarurday, December 10 

lOaiii 4pm Sunday. Dei umber 11 

lVe»lmuisier t.xiubiiiuii Lintit*. 
Greycoat Street. London SW1. 



tcpnnnued from p&ge 16 U 

score and you will gel to control another worm 
in another garden with another type of fruit. 
There are nine kinds of fruit and if you do not 
lull all four of the worm* before this a bonus of 
2000 will be added to your score and you will 
also receive an extra life, then you go on to do 
the whole thing all over again, but 1 doubt n 
many people ceroid even gel to the ninth 
screen very easily lei alone do it repeatedly. 
When you kilJ all four worms and the score 



is in the iop eight you will be Jiktd to input 
your name, 'litis can be anything up to 14 
characters long then the top eight stum, 
together with the names of the scorers will be 
displayed. At this point if you have the attmd 
off but would like it back on, press 5 if you 
have the sound on but want it off press Q, if 
you like the sound as it is simply press the 
space bar to replay. 

My high-score is 16 JSU hut 1 am sure many 
of you will heal that. 



The programs are long and typing theni in 
— especially listing - will be a long, boring 
and an arduous process. If you do not have the 
time or the energy for such a (ask send a 
cheque or a postal order for £3.50 made 
payable to Shingo Sugmra lo the following 
address: 

\l Land ford Road, Puinev, London SW15 
I AG. 

[ will send you a copy of the game on • high 
quality CI 5 cassette 



Listing 2. 

IQMJKW-62O0O 

ZOFCNtA-OTOSTSi RE ADS t At*2DOO-Bi **>* T 
V9IHD 

40RE7* Ftrmt 4rm* 
30DATA 12,12,12,12,12,12,12,12 
600ATA t2, 12, 12, 12,12,13, 13.14 
70DATA 12,17.14.14,13,13,13,13 
BODAfA 13, 14,12,12,12,12,12,12 
9O0ATA 12, t, 3,3,3,3,*. 12 
lOODATA 14,3,3.3,43,43,6,12 
llODATA 3,3,3,3,3,9,12,12 
120DATA 6,3,3,43,43,6,12,12 
I30**£n Second fruit 
140DATA !S, 13, 12, 12, 12,29,"?, 23 
tSOOATA 12,14,13,13,13,23,3,3 
160DATA 13,13,14,12,6.3,43,3 
17O0ATA 14,12,12,12,12,4a, 6, 3 
JBODATA 43,23,3,3.9,9,12,12 
I9O0ATA 23,3,43,3,43,3,23,9 
2OO0ATA 23,3,23,3,43,3,6.* 
21O0ATA 23,3,3,6,6,12,12,12 
220R£f1 Third fruit 
230DflrA 12,12,12,12,12,12,9,7 
24O0ATA 1 2, t2, 13, i,i,», 7, T 
2500ATA 13.13,13,12,12,9,3,9 
260DATA 14,15,13,13,12,6,3,3 
270DATA 11,13,14,13,14,3,9,12 
280DATA 3, 6, It, 7 ,3, 9, 7,3 



290DATA 3, 3, It 
3OO0ATA 3,3,3, 
3lOfiC*1 Fourth 
320DATA 13,12, 
330DATA 13,13, 
3400ATA 12.14, 
750DATA 12,12, 
360DATA 3,3,3, 
370DATA 43,43, 
3800ATA 3,3,3, 
39O0ATA 3,3,3. 
AOORCn Fifth f 
410DATA 13,12, 
4. "DATA 15,15. 
4'iMSATA 14,15. 
440DATA 15,14, 
4SODATA 3^,37, 
46O0ATA 54,57, 
470DATA 54,57, 
4BODATA 38,30. 
490REH Sixth f 
SOODATA 12,12, 
310DATA 15,13, 
520DATA 13,15, 
330DATA 14,12, 
5SODATA 24,24, 
56O0ATA 53,33, 
37QOATA 48,48. 



,3,9,3,3.3 

3,3,4,6.12 

fruit 

12,9,23,23,23.23 

12,13,3,7,3,3 

14,15,11.3, 

I 2. 6,3, 3,3, 3 

9,9,12,12, 12 

23,23,3.3.3,9 

3,3,3,3,6 

6,6,12, 12,12 

ruit 

12,12,12,25,28,23 

12.23,34,37,34,37 

13,31,31,37,34,32 

1 2 , t 2 , 78 , 38 , 78 , 38 

34,57,34,37,54,25 

54,37,34,37,38,12 

51,37,38,12,12,12 

12,12,12,12.12,12 

nil t 

12,12,12,12,24,24 

12,24.48,46,48,46 

6, 48,48,48,48,4b 

12, 12,36,36,40,46 

12,12, 12,12,12,12 

33,48,24,24,12,12 

48,38,48,48,36, 12 



SfMCATA 48,40, 
390REH S*v*rvth 

6QOOATA 12,12, 

61CDATA 12,12, 

62O0ATA 12,12, 

63O0ATA 15,15, 

650DATA 17,17, 

664DATA 13,13, 

670DATA 5,5,15 

6800ATA |4,)4, 
690*En EightK 

700OATA 12, 12, 

UODATA 12,13, 

7200ATA 13,13, 

7306ATA 12,13, 

73O0ATA 7,11,7 

760DATA 7,11,7 

770DATA 7,11 ,7 

780DATA 3,3,3, 
790REM Htn»th 

OOODATA 12,12, 

SIOOATA 24,48, 

BTODATA 36,46, 

830DATA 12, 12. 

830DATA 48,12, 

860D4TA 48, |2, 

87O0ATA 48,12, 

880DATA 4B , I 7 , 



36.3A, 12,17, 
fruit 

17,12,12,12, 

12,12,12.12, 

12,12,12,13, 

4, 14,(4,14,1 

12,13,13.10, 

K, 10,3,13,1 

,15,14,12,12 

12,12,12,12, 

fruit 

12,12,12,9,1 

I i ' ( ^^ I I ■■ ' J 

14,14.3.11.7 
12,12,12,6,6 

,11,13,9,12, 
,11,7,11,7,9 
.11,7,11,3,6 
3,6,6, 12, 12 
frui t 

12,24,24,24, 
48, 48, 48, 4B. 
48.48,46.46. 
12.36,3ft. Z*. 

• ; , 1 5 , 1 2 

3,3,3,13.13, 
3,3,3,6,14.1 

3,6,6,12,12, 



12,12 

12,12 

10,10 

4. 14 

15, 14 

4,12 

.12 

12,12 

3.11 

II 

,11 

12 



48,48 

48,48 

46.46 

48, 4B 

,12 

12 

3 

15 



Luting 3. 




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V0U8 COMPUTER. DCCEMBEfl f»B3 165 




PONTOON 

Gamble with £1 0001 

STICK! TWIST! 
BURN! 

TWO levels of Difficulty 
Win £30,000 to break 
the Bank. 

ALL THE CHARACTERISTICS 
OF THE POPULAR CARD 

GAME, Author M<*rtyn Woodcock 



presents 

NEW 



GAM 

for the BBC Micro 

ZOMBIES REVENGE" "FIGHTER' 




Play against time to capture your 

prisoners. 

Evade the Relent Jess ty chasing 

2ombi« 1 2 Levels, 1 2 Screens 

A difficult gamef 
Author CMvidHughn 



Dog- fight action from the cockptt of 
your jet fighter Up to 5 bandits at a 
time attacking you. 
Defend with laser canon and heat 
seeking missiles. In-flight re-fueling. 
An action packed game 

Aumor Andrew Poarr 



•=«£• 



G PONTOON tS.JS 

ZOMBIES K EVENGE £5 .7 5 

CI FIGHTER C5.7S 

D ABACUS -EDUCATIONAJ. PACK 

6EO>2V£AftOtDS ES.50 

rVfl* An H djyi hi iMwry 



To: AnnOWSOFT, 9 OXFORD STHEfT, 
SOUTHAMPTON. HANTS SOI TDJ 

NAME 
ADDRESS 



I enek»* cneque/PO (or the 
TOTAL Of t 



VANQUISHER («K) 



C1>.^! 



RINGO LlflKl 

■ *■«* « ^ * F»d 

I VI • * T mW£ W«PW| # 



i f in tan. ■ 



ORIC - I 



PARAGRAM |1ftKI 

*»H* r* A * * O r H rrr •<-■»■ r 



****** 



JERIC0 3 |4*K) 



" » fm,t*'**m*m ' ■ n 

tl *_!.—, l .^ . . ll/.. .H |„ 



FARMER HORACE f J6K) 



^i*" ana %M tta« "*« ay 



«M» PfHlbdl 





•A* «UH AM W. 

KM 








VANQUItMlfl t«M> 
SB 




a ft 



Wholesale 

Distribution 

by Pilonmist 

0924 272545 



Elephant 
loftuiofc 



« 



• i H.,«m ||4 lu^.k,. »««k<hl» *Ll *mt 




SOFTWARE 



for BBC Micro, Acorn Electron, 
ZX Spectrum, Dragon 32, Atari, 

ZX-81 . i 

Education, Utility, Adventure and Games. 

H aadai 'or voung CWm hMrmr^ id ™*d. *• oroaram uw aMtmht Latfrtml 
amofuc.* to iimwlM* if" tNrfi maomafcon and pwmh cQr*ant.»tion i« <t«i*« 
rijftnQ r>arr L H ancoufgi, apaad wxl kohicy by On-WQ ypnc n mi nH aa wad — 
Hi iwf wfliJ Hi»l*»m,*h*i»i*»*y«ftiitloEhoc»or»wi«J, orte aantanea w 
4ii« pafMrajrt of fl>a Mcr 10 &* d wc H i fd dp (ha acaan fwnoui al *arti mewarltt 
wl can tw gun. rt raqtarad tlww » r«> norm an lha tap*. HvtablD lor * 1 ywar 
<Mt Voy. can pHiii|> youT own iy yr^ cfWfi !»><iut** aiotir toon, mtttmonaft i p a n h 
tynUmmi For 4«K Spacrrum 

S>mo« fl inm 1 • aiaimg *"d atttrtwa. mate & adwtfur* gam** «x;Kn*nfl 
Vamrafa, QtJtaia, Mar chant , FtanfcanatDn. fry,****!. Larvter PJacaVack and Sombfv 
For *(■!» Spatflurri 

apaekfaa '** mtoinia;«n cm fl int *i inra* latDona h A Mam drn*n and mall 
Huthhy Jit»<n WVr MW, h aa»*t OulBuI *0 low* »pm* AJan Cjw» A*!pMluta 
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SlwmcH flcrt«o« f*om»P and ff»e»t Adwantm* For Qianon 3? 
Malht 1 t» Maih« 5 fj uom «ntti ID orowanv v wmfi Up* p«»«t, • cunteMne 
W*ii» maiH.i c-ouna tor 6 to le y*n i*J» Etch rjpa coniam i TEST and GAME 
program Fv SBC. Elactran. Sa*Clri*n. OrAOOA, A(aji : /X HI1KJ and ZX 4! 1 1 SKI 
Iducaia 1 la Edutat* 1 WW 1 amf 2 OOWain ffryci . Clwnn.tr, and BaWwr 
ivogrtna and m* luurJi tot II to 14 yaar dWi Tapv 3 coniaim word oama« and 
would ba urtatHa fev any aoa Foj any SrjKtnatt 

EdutaiMSn I nckjOn MAPDHAW «rtinti aHOHi* yOv to draw rnapi *aoram» n 3 
cotoLiri *«* or wrthctri grt* ir r^»« Aufaoui enf»<nandanclMH»of r»«» <*■* rw arWvct 
Can l» SAVfrt »f ar>« M«|r Atar h M|$ T OCfl AM w*«:* a»m« vp ro J I *«* anirw* «*1 
nria. and way Bar tn*n « Drawn ar<o»» ih« >o*an m 4m cDtourt and ihcwn 
•vrvntal Tahiti (rl data FMarwi grapri can r* S AVEct s-nr BBC B ■3* , *C.J 



. nr 

BtC. Alan or Draflon f6 95 

Etatuen oi SoDtuvm f > «. iX BUI Hi « »«lH6(t. f 4 W 
SooUM rontamtng H Waitn proaran^ t« BBC. Spacirum. ZX Bl 11X1 dt 

ZXBlMBril (il<, 

)*nd ffjrour. ** V 'aouratHMT vtttf to 

Simon Software 

FREEP0ST, New End. Redditch, B96 6IVE 

tnawa* MM* lyfn Of compuiar" Ganaitjut U a a lar or L E A i*«.ount lor gjuanllv cwdm 
SumdSAt *o> ttm catatogu* 



166 YOUR COMPUTER DECEMBER 1983 




t he so und of 
your SPECTRUM computer 

SOUND AMPLIFIER. Enhance the quality of your Spectrum programmes and games with 

the Pinnacle Sound Amplifier. This battery powered amplifier/speaker simply connects to 

your micfo, producing good quality sound necessary for the full enjoyment of music 

programmes and games with sound effects. 



FEATURES: - 



4 



Simple to connect - no 
internal connections 

Self powered by standard 
batteries - eliminates 
additional cables 

LEO Indicator 



•))) Two output levels 

Provides audible response 
*)» when inputting from 
' keyboard 

\ Independent from video 
■*jj signal - does not aflect 
receiver tuning 



AROUND 

£7.99 




PINNACLE ELECTRONICS LIMITED Pinnacle House, Oasthouse Way, Orpington. Kent BR5 3QJ. Telephone (0669) 27000 



AVAILABLE FROM 

AUOft 

WHMn Sup* H#t hi 



■ IRKS 

H'C-J* 
CAMU 



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AND OTHER 

LEAPING HOME 

COMPUTER SHOPS 



YOUR COMPUTER DECEMBER 1 SM'i 1 6 7 



Yoi'R MISSION is 10 destroy the headquarters 
of the secret state police and the suggested 
method is to fly over in an aeroplane and 
bomb the nearby hydroelectric dam. Since you 
have an unlimited supply of 10001b bombs on 
board, this should be * cinch; however, it is 
nor a perfect world, a machine-gun emplace- 
ment defends the dam iiself and, at the base of 
(he dam, a rank patrols the gorge. 

Dam Splat is for the Commodore 64 micro- 
computer. When Run you see the title page. 
There is an option of instructions. The game 
starts with you at the highest altitude towards 
the right of the screen. As you progress hitting 
the dam it will slowly erode away and 
eventually spill its contents. When this is 
achieved, you are given the option of carrying 
on at a harder level. This will result in the 
machine gun and the tank firing more rapidly 
and, in some cases, the dam becoming thicker, 
You arc continually graded throughout the 
game and are given a grade from erk — new 
recruit — to Air Marshal depending on your 
performance. All controls are given in the 
game. Note that when typing in line 4054. the 
graphics symbols represent the message 
GOOD LUCK YOU WILL NEED IT 
when typed in lower case. 



2 
3 

4-10 

20-66 
6043 
80-96 
100-140 
200 220 
230-246 
250 280 
276-340 

400-440 

900*920 



R unstop Restore key* 

Beak Ian 

jump to iMaa page 

lower memorv pomter* 

mi user defined graphics mode 

POKE DATA tfilo memory 

Data for graphics 



1000-1010 
1100-1150 
2000-2021 
2030-2070 
3000-3014 
3100-3121 
3130-3150 
4TJ00-4O4& 
4060-4066 
§000*5010 



t«t up screen ready for gam* 

main loop 

bomb drop routine 

darn erosion routine 

dam spitting water routine 

miaajnn complete message and 

par* 

final rank and cold start, resets 

trie computer using SYS 64736 

□ianes height 

machine gun tin routine 

tank move routine 

tank hra routine 

plans 1*4 after a Nt 

exptoaion and maaaaga 

trrtepeoa 

instructions option 

instruction pnnt out routine 

Data for instruction* 

wart for a key 

eat up an array containing ranks 



tatx •■ ■ > 

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.:. : - 
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Drop 1 r 000lbsof high- 
explosive and destroy the 
secret police's HQ in 
Simon Scott's action- 
packed dambusters game 
for the CBM-64. 



^w*snar''%a%>W, 

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VOUHCOMPUttR. DREWUn V»*3 lit 



The SLICKER Challenge 





To the few that 

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We challenge you to beat SLICKER the new totally original 
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Simply write the code 
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and we wffl send you by return ; 
FREE GAMES CASSETTE and your 
Slicker Champions Club Membership 
[Applications must be received by Jan, 31st 1984). 



To order Slicker 
see order form on page 224 













il 


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ulll 






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I 



N 



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j0/lf MfCROMOUSf At last educational arcade 
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Fight thi ough the tevefs to the highest score 
HDtAM. Ah asteroid explosion has 
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opened with f-gu i gbnt beetle eggs Naturally 
the beetles go berserk when their eggs are 
stolen Higher levels offer more complex 
mazes and fast -moving spiders 

TWO-GUN TURTLE, in the middle of 
winter a turtle is defending hft strawcerry 
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some go for strawberries, some go for you 
some don't go for anything unless they re 
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aigMj ,,. _.„ . _. _ I Poyrffon ChesnreSKiJTAE Teieorwie foynlonWBM? * ' fc » 

NEW AUVbNTUREM ASTER SERIES First title— The Stolen Lamp BBC B L_ _ _ — I 




SCREEN KIT 



Hfrr ARF 1 7 routines to enhance the screen of 
the Dragon 32 and add better sound effects to 
your progams. The routines will scrool the 
high resolution or low resolution screens m all 
four directions, invert either screen, fill [he 
whole low-res screen, the foreground or the 
kii kground with a specified character, draw a 
border of a specified character around the 
screen, and produce two different sound 
effects, 

When the primed program is typed in and 
Run. it will Poke the ruuimtv into memory 



from address J20OC onwards. The program 
should then be Saved and all the routines 
tested. 

Each time you wish to use any of the 
routine* in your own programs while the 
program is under development ihe routines 
mus! be loaded separately before loading your 
own program, Before loading the routines 
using CloadM you should type 
CLEAR 200,32000 

When your own program is finished, before 
Saving ii type: 



POKE 27.&H7F POKE 28.&HFF 
This will allow the rouiuie* DO be Saved 
together with the Basic program using the 
CSave command. However, it will stop you 
from editing the program and so should only 
be used when you have finished the program. 
The routines available are listed in table 1. 
T>pe Fjfcc followed by the start addn. 
When all the routines have been tested and 
when they work they can be Saved using 
CSAVEM SCREEN" r r 32QOQ.3Z6GQ,60O 
They can be loaded again using CloadM. 



A7,00, 
F3,39, 
82,25, 
20,08, 
20, Fl, 
7F,A7, 
0O,26, 
06 , 00 , 
25, 17, 
C4,F0 t 
84 , OF , 
DE,8B, 
CO , A 7 , 
00 | A6 , 
26, F7, 
00 , 30 , 
F6,39, 
O0,30, 



1 DATA BE,O6,OO,A6,01 ,A7,B0,8C 

2 DATA IE, 00, 26, F7, 86, 00, BE, ID 

3 DATA FF,A7,00,30,B8,E0,8C,06 

4 DATA 04,2E,F6,39,BE,1D,FF,A6 

5 DATA IF, A7, 00, 30, IF, 8C, 06, 00 

6 DATA 26,F5,86,00,8E,06,00,A7 

7 DATA 00, 30, 88, 20, 8C, 1D,F6,2D 

8 DATA F6,39,8E,1D,FF,A6,88 T E0 

9 DATA A7,00,30, IF, BC ,06, 20 ,26 

10 DATA F4,8E,O6,OO,S6,0O,A7,60 

11 DATA BC,06,20,26,F9,39,8E,06 

12 DATA 00,A6,88,20,A7,80,8C,1D 

13 DATA E0,26,F6,86,00,A7,B0,SC 

14 DATA IE, 00, 26, F9, 39, BE, 06, 00 

15 DATA A6,0O,43,A7,80,8C,lE,0O 

16 DATA 26, F6, 39, 8E, 06,00,68, 80 

17 DATA 68, 80, 25, 07, 8C, 12, OO, 2D 

18 DATA F7,20,07,A6, 1E,4C,A7,1E 

19 DATA 20, F2, BE, 11, FF,A6,00, 84 



20 


DATA 


FE, 


21 


DATA 


26, 


22 


DATA 


64, 


23 


DATA 


". 


24 


DATA 


01, 


25 


DATA 


84, 


26 


DATA 


12, 


27 


DATA 


8C S 


28 


DATA 


40, 


29 


DATA 


89, 


30 


DATA 


FF, 


31 


DATA 


20, 


32 


DATA 


8B, 


33 


DATA 


04, 


34 


DATA 


OO, 


35 


DATA 


A7, 


36 


DATA 


2E, 


37 


DATA 


A7, 



30, 10,8C,05,FF 
BE, 12,00,64,82 
07, 8C, 06,00,26 
A6,01 ,BB,80,A7 
8E,06,00,A6,00 
00,30,88, 10, BC 
F2,39,8E, 04,00 
27, 29, A6, 00,81 
81,80,25, 19, IF 
B4,0F,43,F7,7F 
BB,7F,FF,A7,B0 
40,A7,B0,20,D8 
80,20,D2,39,8E 
01,A7,8O,8C,O6 
86, 60,8£, 05, FF 
88, £0,80,04, 06 
8E,05,FF,A6,1F 
IF, BC, 04,00,26 

(ttsimg continued on page 175} 



YOUfl COMPUTER DECEMBER 19S3 173 




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174 YOUR COMPUTER. OECeiWBfH 1983 



t continued from page J 73 1 

38 DATA F5.Q6, 

39 DATA 30,06, 

40 DATA 39, SE, 

41 DATA 00,30, 

42 DATA BE, 04, 

43 DATA 04,20, 

44 DATA 04 f OO, 

45 DATA 8C,04, 

46 DATA 00,30, 

47 DATA F4,39, 

48 DATA Q0,8C, 

49 DATA 04, BE, 

50 DATA 26,08, 

51 DATA F3,39, 

52 DATA 9E,04 f 



60,BE,04,OO t A7,00 



20 t 8C 
05, FF 
1F,BC 
00,86 



r 05,FA f 2D f F6 



, A6,88 
04,1F 



26 F F9 



t 60,A7 



,E0,A7 
26, F4 



,86 



20,26 



88,20 

86 , 4 . 
06 , OO , 
04,00 
A7,B0 
30,01 
00, E6 



,80, BC 
,04, 8E 



A7, 89,01, E0,A7, BO 



,F5,A7 



,1F,A7 
, 00 , 26 
, 00 f A7 
, 39 , 86 
,C1 ,60 
, 8C , 06 , 00 f 26 



8C,06 

, BE , 04 

,26,F9 

04 , 00 , E6 , 00 

8C,06 

,20,F6 

v 



,00, CI 



,B6,04. 
,60,27J 



|53 DATA OB,A7 t 80,8C,06 f 

54 DATA 39,30,01 f 20, F6 f 

55 DATA FF,23,C6,00,F7, 

56 DATA 7F,FF,F6,7F,FF f 

57 DATA 26,FB,86,40,B7, 

58 DATA 7F,FF,5A,C1 ,00, 

59 DATA B7 f FF,24,Bl,7F f 

60 DATA 39,00,86,3F,B7, 

61 DATA FF,F7 t 7F,FF t 7A t 

62 DATA 7F f FF,5A,Cl,00 f 

63 DATA 40 f B7,FF,24,F6, 

64 DATA CI ,00,26, FB,4F t 

65 DATA B1,7F,FF,26,DF, 

lOO CLEAR 200,32000 

110 FDR F=320OO TO 3251 
120 READ A*: POKE F,VAL( 

130 NEXT E 



OO, 26, F3 
86,3F,B7 
7F,FF,7C 
5A,Cl f OO 
FF , 24 , F6 
26,FB,4F 
FF f 26,DF 
FF,23,C6 
7F,FF,F6 
26,FB,86 
7F,FF,5A 
B7,FF,24 

39 



7 



■A*) 




Table I 
Slart 
address 
32000 



32029 
32058 
320B6 



32109 



High- resolution routines 
Routine 

Scroll irve hires screen one byte to the 

left - eight pixels, This routine & lor 

use in Pmodes 1 ,3 end 4 and works an 

the first four hi -res pages, 

Scroll the hires screen one byte lo the 

right. This also scrolls the first four 

pages in Pmodes 1 .3 and A 

Scroll the screen down one pixel. This 

routine scrolls the first four page and 

works in all modes to 4 . 

Scroll the screen up one pixel. This also 

scrolls The first four pages in Pmodes 

to 4. However, when used m Pmodes 

0,1 and 2 the £jtec command should be 

followed by (he command line 

H0.191 > 1255,191 1. Preset, 

Invert the hires screen, This inverts the 

first four pages in all modes. Green 

pixels and buff pixels lurn black, black 

turns green or buff depending an 

whether you are in Screen 1 ,0 or screen 



32123 



32163 



Low-res 

Start 

address 

32205 

32255 

32263 

32313 



3234 T 



1,1 . Red turns green. Blue turns vel'ow 
and vice-versa. Orange and buff swap 
over and cyan and magenta switch , 
Scroll the screen left one bit — one 
pixel- This is for use »n Pmodes and 2 
end affects the first two pages It is 
smoother than the byte scroll used in 
i he other modes but slower. 
Scroll the screen nght one pixel. This 
also affects the first two pages in 
Pmodes and 2, 

r»jrf routines 
Routine 

Invert the screen. 

Scroll the screen left one character. 
Scroll the screen right one character, 
Scroll the screen down one character. 
There is no routine to serott Ihe test 
screen up as thus gen be done with the 
simple Basic commend Print a! 480 
Draw a border of a specified character 
around the screen The poke Code Of 



the character used should be poked into 
location 32342 before calling the 
routine using Exec, The Poke codes are 
slightly different than the ASCII Codes 
listed at the back of the manual, To find 
i he Poke code of a character wit h ASC II 
code X, use Prim al O.Chrt(Xl;:Pnnl 
Peek (1024) 

32370 Fill the screen with a specified 
character. The character's Poke code 
should first bo Poked into address 
32371, 

32363 FUl the background with a character AN 
the spaces on the screen ere lillKl with 
the character whose Poke code is in 
address 32384 

323406 Fill the foreground with a character . 

Sound routines 



Start 
address 
32429 
32474 



Routine 

Laser / Phaser f Zap 

Swanee whistle. When used several 
times at once produces a siren noise 



VOUR COMPUTER DECEMBER 19B3 175 



This prixiram. wrutkn Tot the 48K 
Spectrum, will load ZX-81 program tapes and 
transform them so they are able to run on the 
Spectrum. 

After the Basic program has been Typed in 
from the program listing, which should not 
preterit any problem, run from line 9900 
which wilt Save and Verify the program on 
tape. 

When the Basic program ha* been Saved run 
from line 10. First the CO array will be filled 
with ihc Spectrum codes in the ZX-81 
position, and ihe machine-code programs wttl 
be Poked into the correct location. All this 
information is held in data statements from 
line 9000 onwards, At the end of each data line 
there is a check-sum digit for the line, If an 
error occurs when the offending line will be 
listed ready for editing. After the line is 
corrected, restore the data and Run the 
program a pin. 

Once the data has been loaded correctly you 
will be asked to insert the ZX-SI program tape 
and press enier The first time you try to run 
this program I would suggest that you use a 
tape that you have purchased, since the quality 
of the recording is probably better than you 
are able to achieve. Stan the tape as close as 
possible io the beginning of the program, this 
is to avoid the loading of lots of noise from a 
poor recording. 

If the tape is noisy the solid border colours 
will change. Generally immediately prior to 
the start of the program there is a silent area; if 
necessary stop the tape recorder at this point 
and press Break on the Spectrum. To restart 
the program type Goto 500 then restart the 
tape recorder. I find that io load normal ZX-81 
and Spectrum tapes that the volume on the 
tape recorder is set to about 75 percent, To 
load ZX-81 tapes on the Spectrum 1 have to 
use about 3(1 percent volume for tapes that I 
have purthased and about 95 percent volume 
for my own recordings. 

The correct volume setting will have to be 
found by trial and error. If you listen to the 
noise made by the Spectrum when loading 
pro g ram this will give a good idea of the 
volume requiretl- 

Vt'hen the end of the ZX-81 program has 
been reached the border colours will revert to 
the solid changing colours. At this point press 
the Space-key - not Shift space or Break. The 
Basic program will then continue by asking for 
the name of the ZX-81 program that you have 
just loaded. The Bask program will then 
proceed to try and find the name among the 
in for mat ion it has read from the tape. 

When the ZX-fil program is being loaded, 
all the information that comes from the tape 
recorder is stored as it is received- This nm 
mean, if the tape was noisy prior to the start of 
the program, thai the program name is not at 
its correct position. The Basic program 
therefore looks at the first few storage 
locations to see if it can find the name. 

If it cannot, it wilt then shift each bit along 
one position and repeat the search up to eight 
limes for the program name. ]f the program 
name is not found, change the tape recorder 
settings and start the program again from line 
500. If you still Tail to find the program name 
then it will be necessary to re-record the 
/X-81 program taking great care to produce 




E PR 1 T .- Y -- 



Si* 
NEW 



COS 
SAVE 



TAN 

DIM 



UNO 

oorp 





M C Evans with a 
routine to enabfe 
you to run ZX-81 
programs on a 

Spectrum. 



COPYING 



the best quality recording you can. If you 
entered the wrong program name, then rcvtari 
the Basic program from line 1000 and enter 
the correct name. 

If you still fail to find the program name 
then it will be necessary to re-record the 
/X HI program taking great care to produce 
the best quality recording you can. Alter* 
natively n may be possible to transfer the 



program directly from ihe ZX-81 to the 
Spectrum using a tape recorder and amplifier 
from an audio system. To do l his, first load 
the program into the ZX-81- Then connect the 
Mic lead from the ZX-81 to the microphone 
input of the tape recorder, if it is stereo 
remember which channel you are using. 

Connect the headphone output of the 
amplifier io the Ear lead of the Spectrum; if it 



17* roufl CQWUTER, DECEMBER 1983 



is a stereo amplifier turn the balance control so 
(hut only the correct channel is being used 
Put a tape in the recorder and start recording, 
this will link the tape recorder and amplifier 
Start the Basil program in the Spectrum Irnci 
line SOU and finally instruct [he ZX-81 to wu- 
in program. 

1 1; is causes the ZX-81 program lu b< 
simultaneously recorded an tape,, which can 
then be discarded, and lay the recording signal 
directly to the Spectrum* which thinks u n 
reading a tape. I found that the best result!* 
were obtained when as lew is possible modi' 
fkaiioiis were nude to the recording signal, 
i.e., no Dolby, peak iiotse filter, bass, treble 
and other sound enhancements Despite the 
number ol leads and power supplies reunited. 
I (bund this method lu be the mosl uouble- 
free. It also works Spcuium to Spectrum 

Having found the name of the ZX-S1 
program, the rest of (he program is then 
converted so that it is able to run on the 
Spectrum with the lotlowing differencei to 




Alter the program has been Saved an attempt is 
made to find a new entry point into the ZX-8] 
program. Thus several sections of the ZX-tll 
programs can be Saved on tape and later using 
the Spectrum's Merge command, the programs 
combined together into one program, plus a 
few gaps. If errors do occur it is indicative of 
wrong volume setting or a poor recording. 
There are atao four machine-code programs 
j used by the Basic program during the course 
of Loading and converting the ZX-Bl program. 
1 nc first machine-code program interprets the 
ZX-81 tape signals and stores each bit of 
information as it is received. The signal on a 
ZX-H1 tape has the following form: 



statements. 

Slow, Fast, Poke and Usr are replaced with 
Rem lo slop the converted program accidcuily 
crashing. IJnplol is replaced with Pint and the 
shaded ZX-81 graphic (.haravieis are replaced 
with Spectrum's user definable graph, 
which you will have to define later 

if a legitimate Rem statement is 
encountered, you are asked it the line contains 
machine tode and, it so, it you want to Save 
the machine code on tape. 

After the ZX-Bl program has been 
converted you arc prompted tui a pfogiaiii 
name so the converted program can be Saved 
on cape. The Sated program can then be 
loaded back into the Spectrum a* a uoniiiil 
Spectrum program. Most programs that are 
free of Peek, Puke and User statements ale 
then able 10 run without am tun Ml i 
modifications. 

U having round the name an cttui OCCttfl 

during the conversion, you will he prompted 

ht program, so tar convened, on tape. 



On 

on 



jijnrLnjir"L_ <•« 



I*. 



onJiiiruiiinrurriiTn^ 



1 here ate Jour oi nine regular on and off" 
signals — indicating bit ur 1 bn respectively 

lul lowed by a shun on and oil" followed by a 
long on and oil - which indicates the end of 
the bit In the ZX&l ihcse signals arc decoded 
by counting the tune between reaching the 
start uf the long nil signal, from the previous 
bit, and deciding thai the long on has been 
reached. The distribution of time taken to 
decode a bit looks like this. 




The h regisici is used as a ^uunici and stalls 
with the value Hex ¥4, decreasing by one each 
time it passes through the loop. A long on 
signal is deemed to have been reached when 
the signal has been on tor 2b loops. 

|| the lung nil ii mashed prior to the counter 
reaching Hei 56 then an error is assumed to 
have occurred and the counter starts again 
I torn Hex u 4 If an error occurs anywhere else 
but the first bit v then the program will not load 
correctly, ll a valid long on occurs before the 
counter teaches Hex Oil then the bit is an U, 
otherwise the bit is I The grouping of time 
lot the U's and |*i is very compact and the 
ZX-81 seems difficult at interpreting the 
signal. 

if the same procedure is followed on the 
Spectrum the following distribution occurs: 



JUL 



Instead ot the grouping being tompatt, they 
appear like the statistical normal distribution 
with the accompanying tails. To get the 
distribution mm the same form, the setting of 
the volume .mil tune controls on the tape 
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contrnuad from page i77i 

recorder arc critical — which is not the case on 

the ZX-81 — otherwise the distribution looks 

rectangular. 

The «exl problem is thai diltcrem tape 
recorder settings cause the peaks, and more 
importantly the tails* of the distribution to 
move. This then leads to the tail crossing the 
boundary between a and 1 bit. 

These differences between the ZX-81 and 
the Spectrum mean that h is not possible to 
use the ZX-Si method of decoding the tape 
signal and rhis is why grearer care has to be 
taken when recording the ZX-81 programs to 
avoid the square shape of the signal becoming 
unduly rounded thus making it difficult to 
pick out the long on signal correctly. 

The problem of knowing when the end of a 
bit has been reached is overcome by going 



back to firs! principles. By counting the on 
signals and looking at the Innp on signal to s« 
if it occurs roughly on the fifth or I Oth signal. 
The loading routine is the first of the machine 
code programs and is very straight forward 
and simply leads the tape and stores each bit 
as it tomes trnm the tape for micrprcialion 
later. 

This leads to the problem thai if ihctf is any 
noise on the tape prior to rhc vtan of the 
program then the program itself will nut be at 
the start location and each bit of data may not 
be it its correct position in the byte. 

After a program has been loaded into the 
memory the next problem is to get each bit 
into correct position within the byte. This is 
done by the second machine code program 
trying to find the name of the ZX-SI program 
somewhere within ihc first few storage 



Si 



ffiMJjj 



'I'l'ii' 



™nrm \mm mwm 

m ft* 



locations. To do this the Basic program first 
asks for the name of the program already 
loaded, then looks at about the first twenty 
locations to see if the name occurs, if it does 
not then each bit is moved one place, as shown 
below, until the name is found. 

The third machine -code program is used to 
find a new entry point into the ZX-81 program 
by looking through the I ftK storage area to ace 
if » can find a code 1 18 (N'EWLINK). 



.;* --= 



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V si i -s SQ-c35ir I 



182 VOUR COMPUTER DECEMBER 1983 




BUBBLE 
SORT 



Andy Scott shows 
you how to 
rearrange numbers 
or strings. 



Most tm.vrniw is, is-. proi-rams usually 
requite the use of a sort at least once; for 
instance, the armftgement of a register of 
people's names into alphabetical order, the 
arrangement of football league tables, into 
order According to the number of point & 
accumulated , , . the list is endless. At can be 
seen by these examples, a sort is the 
rearranging of numbers or strings into 
ascending or descending alpha numerical 
order. 

The main problem with sorts is that the 
more items thai are required to be sorted, the 
longer the sort takes — but on a umescale 
increasing by the square of the number of 
items. Larger sorts require very sophisticated 
algorithms to keep this time down. 

One of the most popular and easily 
understood sort algorithms is the bubble son. 
Although not particularly efficient above 
about 50 items it is still nevertheless a good 
general- purpose tort, Also, since the sort 
described here is m machine code, n*> 
Operation time is faster than a Basic 
counter part . 

It was decided to take the general case of 
toning stnngs as opposed to numbers — it u 
comparatively easy to convert numbers to 
strings by using, for example. STRS 12M- In 
the example described by the flow chan, the 
data items are stored in a string array A$(B,C) 



consisting of B strings, each C characters long, 
)n practice, any name can be used for the 
programme to work, for example Z$<B,0 

The routine can be used with any sized ZX- 
Si. Reference to page J 74 in the Sinclair 
manual explaining how string array* are stored 
within the ZX-81 may be necessary for 
complete understanding of the machine-code 
listing. 

Note that the VSR entry point is at hex 
4090- One problem was how to tell the routine 
which si rmg array it had to sort. This needed 
to be put into a Basic programme without 
affecting its operation and without creating a 
syntax error during entry of the Basic line, ti 
was decided to call the routine by: 

RAND USR 1652B + LEN A$rt I 



where AS is the name of the string array — it 
could equally be called S*,Z4, etc. Of 
particular interest is the use of the IX and 1Y 
registers which, according to the Sinclair 
manual, are banned from use for fear of 
crashing. After Mudying Sinclair's use of these 
registers, ir can be assured that the sort 
programme has no adverse a flea on the 
operation of the ZX*81. The two Halt 
instructions at the beginning of the listing are 
there to prevent the characters within the Rem 
statement from being listed onto the screen. 

L'se program I to load the machine-code 

programme. The machine code will sit in the 

Rem statement in line 1. After typing Rem, 

follow u with 2"J8 Characters — I usually use 

tcofittnued an next page) 



• 






Table T 








No of 


Length of 


Possible number 


Machine code 


Basic 


item* 


strings 


Of different. 


programme 


1 Fasti 






characters In 














strings 










10 


28 


6 121 


<0.5wc 


(<D.5sec) 


*Jmc 


(Bsoci 


20 


25 


6 423 


4>.5swc 


KO.Stec) 


I7a*c 


(33 sec) 


50 


25 


8 01 


t 5*ec 


{ 2 s«c| 


2m 5s 


14m 53s 1 


100 


28 


6(2) 


M*M 


17 7**c) 


T2m fit 


1530ml 


225 


25 


6(2) 


42sec 


<53sec) 


— 




100 


10 


6 (2) 


3-5sec 


I4.6sec) 


llm 16* 


l-l 


255 


10 


6 (2) 


23aao 


132 -Steel 


— 




10 


255 


6i2f 


<£.5sec 


f0 8**e> 


B«N 


I6 6secl 


10 


t 


e<2) 


"U.Swc 


KD.SsacI 


3 3 sec 


ll.7a*cl 


100 


1 


6(2) 


8sec 


I0.7*et) 


5m 12s 


14m 4s> 


255 


1 


6 (2) 


4.7a*c 


l3**ct 


_ 



















MactofWCQdti biting 






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VOUfl COMPUTER. DECEMBER 1 983 1 83 



Icoiitittvmf from previous p&gel 

O's. Note thai this will severely limit available 
memory on IK ZX-6L*. When running 
programme 1, enter the code in hexadecimal, 
either as a single byte plus New! inc. — for 
example 7b Nl. — or a* a block at a time — 
for example 76760000 N/L* 

Make sure each byte consists of two digit* — 
for example 00 and not 0, On completion of 
loading the machine code, enter S plus N/L. 
Delete lines 10 to 90, Do as a direct command 
Poke 16510,0. This change* the Rem line 
number from I to and will thus prevent 
deletion of ihis line. Now, as a direct 
command, do a Clear. This will clear the 
variables area. Now Save on tape and, to be on 
the safe aide, do a backup copy. 

How is the program used? Program 2 
is useful in that not only does it illustrate the 
implementation of son, but also it can be used 
to ascertain the ion speed under various 
conditions. It asks how many strings are 
required to be sorted — I — of what length — J 
— and how many different let lets m the 
alphabet are to be contained wiihin the strings. 

The requisite number of strings are then 
randomly made up from ihe number of letters 
chosen. The programme then Stops itself with 
report 9/290. If a report of 4/ 170 is receive J, 
the ZX-81 has iried 10 create an array which 
was too big for the memory available — reduce 
the size of i andfor J to compensate. The Stop 
is there to enable tuning of ihe sort; press Com 
then New line and a stopwatch at the same 
time. As soon as a display siarrs io appear, stop 
the watch. The speed of the sort has now been 



Progtam ! 

1 REH (fill **»*» "1th 23* th«r*ct*r*> 
10 LET »L«L-* 

29 LETS*-"* 

» IF R*-"* 1 THFK IMPUT #** 
46 IF Ml. --.- TMEW STOP 

3* poke k, iswrooc dirfott *■<?>-*?* 
«• mtm at ii,7iKr* -.fw-i re 

TO LET X.X.1 

09 LET A«~Af<J tot 

30 OOTO » 

HUN «" ir. FH*T ■ 



timed. The critical Line is 100 — this is where 
the son routine is entered. 

Obviously, to use the sort in a Basic 
programme, ihe Rem line with ihe machine 
code musi be Loaded from tape first. If any 
null strings are within the array to be sorted, 
thai it those that have been Dimed but have 
not been defined with characters, these will 



Program 2 


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appear at the beginning of the sorted list — 
actual I v these will be filled with Char or 
spaces. To avoid this, do not Dimension the 
array more than is going to be used. 

To increase the speed of ihe sort, Dimension 
the string array a* early m the Basic 
programme as possible. This will reduce the 
time taken io find the relevant string in the 
VARS area. Note the son returns in Slow 
mode. If an array has been defined, ihe format 
Rand ISR 1A528 + LEN A*< 1 ) can be used a* 
a direct command, as well as in a Basic 
programme. 

Dunng the running of sort, two types of 
error could occur: 

2:- no such string array e*»sis (standard Sin- 
clair definition) 

E relevant array has more than 2 dimensions, 
or at least 1 dimension > 255 

rjainj ihe example program, table 1 was 
created. This n. average times of the 

son under different condition*.. 

The timings very clearly show the huge 
advantage of the machine-code version. Where 
a dash occurs, no timings were done due to 
their inevitable extreme length — hours in 
some cases! Even in machine code, the 
influence of number of, length and contents of 
strings is clear Iv seen. 

Users of old Sinclair ROMs note the follow- 
ing changes to the machine-code listing: 



4090403Z 
40A84GAA 

40C2 4OC4 
4146-4148 



CD20CF 
CD280F 
CDZB0F 
CD280F 



Brainstorm ' 



Widely used in 
schools 

4—8 year olds 

Free OUie 
Octopus badge 
with each 
program 

Ol)je the Octopus must 
be moved around 
different undersea mazes 
to catch fish for himself 
and his hungry children! 
AMAZING OLLIE 
introduces children to 
the exciting new world 
of numbers (with options 
for basic number 
recognition, counting 
and adding), whilst 
providing a fascinating 
program for the whole 
family to enjoy. 




storm 



OLLIE OCTOPUS* 
SKETCHPAD is the 

program for young 
children and adults alike. 
Its easy to use manner 
lets you create an 
imaginative picture from 
a blank computer screen, 
with no trouble at all. 
Making full use of the 
colours, you can draw 
lines in 8 different 
directions, or build 
circles, squares or 
triangles, which can then 
be made bigger, smaller 
or shaded in. 

BBC Model B t6K and 4SK ZX Spectrum 




STORM Software 



Trade enquiries invited. 
Contact Amanda Ralph: 093; 813528 
Storm Software, Winchester House, Sherborne, Dorset 



184 VOL* COMPUTER DECEMBER 1983 



GIVE YOUR COMPUTER 

A FIRST 

LLaDj 

iHOME 




(iolvin are pleased to introduce this new 
range of Computer Furniture. 

Each unit is designed and constructed 
to accommodate computer equipment and 
provide stability and durability, preventing 
sway and shake. 

Give your computer a truly professional 
base. 




EXECUTIVE 



Mill 

1 1 II' I ii|> 'lliN k 

llu.ii u I > ■ HMItK 

SPECIFICATIONS d;i roll st .-. H v\ . ii i 

I'Lillumi '.'. II -I'. II |W*4 U 




With ntuntv mil U h^UummIW .«ml Lnx fcn.4 

I i mil Jimh i 

II M»| 11 17< tt 

11 m* o i"i'i w 

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"";;.*, AMBASSADOR 

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<i , ij t>* , \\ fatimog of ittfc Amhwilw cmmmlnnrtiit anafcfn 

KXECtmVK M'l'IMl VIIDSMK.,,11 OS MJI-, II ,r, « 

lim |,h L PMlwm i-H in> 3i-\V 

Calvin Computer tt>nln*Ud.. 

luliTiiiii'MiHiwi 70-72 Cha< luii KiHid.OliThum, 
Sumi t IK! hQ!) \V\ : iiH&A -Utri 1 1 

4>l ilh' Si .mi In il (iiiiu|i ill I jiitiii.iiiM -> 



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To: 0»lvinCnmpuii-r OnlmtUd.. * rWrtu ™ . PP tir*hir 

Ini^rf.^ •* i loom, 70 72 Cmvrlnn RoaiI, CmturhiHR. Surrey fKi «qf I 



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DR ORIIMC BY TKLEPHOMK WITH YOI R 
f :RKT)IT t . \KT) f )\ HHH t 4firil 1 

Irt V 11IIHI lq f«V» 1*81 1< lljj Mafk^ Wirr. (Inn 

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Calvin CompuW Ontrw 1 id. few £ 



Nn: 1 I I I 1 I 1 1 I 1 I I M I I 

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SAS ASSAUI r is DESIGNED to work on an 
unexpended Vic- 20. It uses a short machine 
code routine and high-rcsoUmon craphus 

As a soldier n is your duty to defend your 
stronghold until dcaih While you are guarding 
the wall, the enemy attacks. You alone have to 
defend I he wall. Yiiur only weapons are some 
large rocks which you hurl down on lo them. 

The longer you survive the more adversaries 
join in and you slow down as you start to tire, 
You receive three pomls for every second you 
survive and bonus points for each adversary 
you hit. You cannot drop a rock on an enemy 
soldier who is holding on to the top of the wall 
or on one who is walking along it. You control 
your man with keys: 

I - Left C - Riphi 

Fl - Drop a rock 

The program also lets you use a joystick. 

The high-resolution graphics and machine 
code are Poked into memory in program I 
which is also where ihe tmtrttCtaMM are 
situated. The rest of the program comes in 
program 2. Type in program 1 and Save n on 
tape, New ihc memory and iben type m 
program 2. Save (his after program 1 and then n 
J is ready to re-load program I . After running, 
fj program 2 1 .oads and Runs automatically, The 
machine code only sets up the screen. 

If the game is left as it is, you probahly will not 



Ret past level 8, To make 
ftoflio: 

FW lNTMA-71'ai.lFT FWORT FW*20H 
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rOUH COMPUTE H, DECEMBER 19B3 187 



ZXMKRORUR 

More Sinclair Computer 
games,good ies and presents 



than in Santas grotto. 




t*6 VOUH COMPUTER DfCFMBFA 1983 



GREAT TWO DAY SHOW 

AT ALLY PALLY 

DECEMBER 3id &4th 



in fact the ideal opportunity to pick up 
that last-minute Christmas present! 
So, whether you're looking for a 
Sinclair Computer, hardware, software, 
peripherals, books or anything that's 
new . . . 

. . . there's everything from GAMES to 
GIZMOS at the BIG ZX MICROFAIR! 
More than there is in Santa's Grotto! 



SATURDAY 3rd DECEMBER and SUNDAY 4th DECEMBER 1983 

ALEXANDRA PAVILION, ALEXANDRA PALACE, WOOD GREEN, 
LONDON N22. Open: Saturday 10am-6pm, Sunday 10.30am -4.30pm. 
Advance Tickets from: Mike Johnston, 71 Park Lane, Tottenham, London N17 OHG. 
Prices: Adults £1 Kids (under 14) SOp. Parties of 10 or more at 10% discount! 
Please make cheques payable to ZX MICROFAIR and enclose S.A.E. 



There's more to see, more to play with, 
more to experiment with and more 
that's NEW for Sinclair Computers at 
the great TWO DAY ZX MICROFAIR AT 
ALLY PALLY! 

Come along and see for yourself. 
It's the BIG SHOW for ZX enthusiasts, 

plenty of room, bars, 
refreshments . , , 




GUT OUT AND KEEP 






i**iivftCiictii*i Pi*tt|«ip*kiaiiHeia0l|W 




Frvo lxkJob i tap &o» v MeartfMt 

nwMlntalitMHtiifiijefiJiliee - t™t*rtt*hn 






<t*,twv>.**l*»*.tvnr 



itMtttK* / 

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ALEIMOI* MUCt 



nines c»css 



MOMWTE 




0«*o»o Otui n*p C-ntt. 51 Fwaai * 
H*M*ft aid hktftai - <*n*<cnm 
pufann. to 8* Mvfc* S»pct to 
No**! fine* - kttMIHIMvi 
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<wbrt#i 



BtlTfSM MIL 
ftlEMNDM MIKE 



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ZX MICROFAIR 

ALEXANDRA MLACE 

DECEMBER 3rd & 4th 1983 




EXHIBITORS! Call Mike Johnston now on 01 -801 9172 for details of space at this and future shows! 



VOUft COMPUTER DfCEMBEH ?9»3 189 



r 



l 



M East! 

MASTER MACHINE CODE 
on your Spectrum 




MASTERING MACHINE CODE 
ON YOUR ZX SPECTRUM 
Tom Biker £9 95 
This 31 5' page book ts designed to 
teach you the essential elements o! 
programming in machine code 
Written by Tom Baiter, author d 
the highly successful Mastering 
Machine Code on the ZX81. this 
new book assumes absolutely no 
previous knowledge of machine 
code whatsoever, and yet 
promises to take you too level 
of proficiency beyond your 
wildest dreams Starting! with 
sun pie addition and subtraction 
you'll be slowly guided through 
the entire subject of machine 
rode The book explores and utilises the 
incredible speed qI machine code, giving you real tune 
graphics games like BREAKOUT and leads you up to a hill 
working DRAUGHTS program Among other useful skills 
you'll acquire the ability to create muse m real tune 
(impcesble m BASIC) and to pbt in togrv resolution graphics 
(aster than you would have bebeved parable 

SPECTRUM MACHINE CODE 
MADE EASY 

Volume One — James Walsh 
Volume Two — Paul Holmes 
These two books provide a graduated 
course m machine code programming 
on the ZX Spectrum Book one starts 
off with the baste concepts of 
machine code, idlowed by an 
explanation oi binary maths, 
hexadecimal and base conversion, 
leading as quickly and painlessly 
as possible onto the rules and types 
of addressing the Spectrum's 



powerful Z60 microprocessor Book 
two is designed for (hoes who already 
understand the rudiments of machine 
code programmmg, and now wish to 
increase their skills 
Each book is just £595 






THE SPECTRUM MACHINE 
CODE REFERENCE GUIDE 
Microdrive, Interlace 1. and 
ROM Disassembly 
Richard Rosa- Lsngley £4.95 
This 1 70-page reference work 
for Spectrum machine code 
programmers contains a full 
djsassembiy of the Spectrum 
ROM, with defalk of the 
Microdrive and Interface t 
Features of the disassembler 
include Zibg mnemonics are 
used, eg ID A. (HL) instead of MOV A, M; 
relative tumps show the signed decimal offset and the 
result; hex values are default and are printed without suffix, 
decimal values are preceded by a phjs or minus stgn; and 
some restart instructions are followed by data bytes. The 
absolute addresses of all system variables and several 
important routines have been named, using where possible 
the standard names shown in the manual the chapter 
headings m the Microdnve/ Interface 1 section of the book 
include the RS232 Interface. Microdrive Channel data, 
Local Area Network, Network Algorithms, System 
Variables, and a summary ol functions This book it a 
must reference work for serious Spectrum machine 
code programmers 



Interface Publications. Dept. YC, 44-46 Earls Courf Road. London W86EJ 



Please send me the (allowing books ] enclose 1 

G Mastering Machine God* on your ZX Spectrum — Ton Baker 

-£9.95 
D Spectrum Machine Code Mad* Easy. Volume On* tor begnnen — 

lame* Walsh- £595 
D Spectrum Machine Code Mad* Easy. Volume Two lor advanced 

programmers — Paul Holmes — £995 

□ The Spectrum Machine Code Reference Guide - 
Richard Re* -Langley -£4 99 

D Creating Adventures on your ZX Spectrum — Peter -Shaw and 

James Mortleman - £4 99 
Q Putting Your Spectrum to Work (includes 1 5 mapr programs. 

including a word-processor and spread sheet calculations) — 

Chri.CaBendsr-£4.95 

□ Creating Arcade Games on the ZX Spectrum — Daniel Haywood 
-£3 99 

Q Programming Your ZX Spectrum — Harnett 1 lone* — £6-95 

O 60 Gome* and Appeal*** lor the ZX Spectrum — D^vid Harwood 

-£4 99 
O Beyond Sunpl* BASIC — Driving Deeper into your ZX Spectrum - 

Dsiwyn Jones - £7 95 



D bi«4*U Sfoeciruin Programming (tape and book) — Tim HartneU 

□ 20 Sunpte Ebrtront Project* tor the Spectrum - Stephen Adans 

□ Giant Book ot Computer Games — Tim HartneU - £7 99 
Nam* 

Add rets 



H1TERMCE 

PUBLICATIONS 

We're the experts! 




All books available tram computer and book stores, inrludin. t W M Smiths. Mannas, and Dtxons 
Trad* suppied by The Computer Bookshop. 30 Lincoln Road. Often. Birmingham 527 6PA (02! 707 7544. Mine 334361) 



130 VOUR COMPUTER DECEM&EH 1983 




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Wf NOV MOVE INTO pen two of the program 
foT Scram-81, This 15 where ihr aircraft and 
other features of the game arc added. Reserve 
more space for the machine code by creating 
Rem statements 14 to IB ofkngths indicated 
in tahk- 1 Cheek the addresses ss bdbff 

The aifcrafi »nd bomb* etc. arc held on a 
separate screen which is superimposed Onto 
the background and erased just before the 
bfdigroand ih moved. Thr time of erasure is 
kept to an absolute nimimum to avoid any 
excess flickering of the screen. Enter the 
machine code for Rem 14. This deals with the 
movement of the aircraft. 

In addition to the last Basic program, add or 
change the following: 

131 LETF = 20*99 

132 FOR G =: 1 TO 6 



ZX-81 

Philip Harwood completes 
his Scramble-type game 
for the ZX-81 with details 
of aircraft movement and 
firing systems. 



133 POKE F,22 

134 POKE F + 7.3 

135 POKE f * 2,0 

136 IETF » F + 3 

137 NEXT G 

138 POKE 204845.185 

139 POKE 20489,2 
Ml POKE 20480.0 

142 POKE 20486,21 

143 POKE 20487 3 
155 RAND USR 21331 
170 RAND USR 21355 

180 IF PEEK 20480 = THEN GOTO 155 
The aircraJfi should now appear and is 
cont rolled by ihe keys A — up, Z — back and 
M — forward. Note that two keys can be 
pressed simultaneously 10 gjve diagonal 
movement. There is t limit to how far the 
aircraft can move forward, this, can be adjusted 
by Poking addrcs* 21506, 
Rem 15 contains seven subroutines: 

icofittnutd on page t93i 




219S3 
21391 

m M 

22015 
220. 

229: - 

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1 ■ .; : :? 

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2210 3 ■ 0C-505F3J0E50B70* =. 

22-i:. i^:3i0*:'" i = £,02 

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221 + 3 * 22«3l320" r CC'i-912 ■ S90 

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221*7 - FE0020l3t>3S1713:3 * 4 10 

221^5 .TSCflCC*TS5 ■ B+B 

22143 - C3flf>E0 - +38 



YOU* COMPUTER. DtCfc MBF R 1 93 3 '91 




THE MAPLIN TALK-BACK 
forZX81andVIC20 

Now your computer can talk 

* Allopbone (extended phonemel system gives 
unlimited vocabulary 

* Can be used with unexpanded VIC20 or ZX4M 
— does not require large areas of memory 

* In VJC2Q version, speech output is direct to 
TV speaker with no eddwonaf amplication 
ftMOSd, 

* Allows speech 10 be easily included in 
programs 

Complete kits Order As 
LKOQA{VIC20 Talk* Back j Price £24 95 
LKOiBtZxei Talk-Back) Price £19 95, 
Full construction details in Maplm Projects 
Book 6 Price 70p Order As XA06G 

SOUNDS GENERATOR 
FOR ZX81 

3 -Programmable tone generators with 

programmable attenuators turns your ZX81 

into a mini-synthesiser 

Noise generator with 3 pdcn levels enables trie 

creation of most special effect sounds 

Single address access via BASIC with PEEK 

and POKE Connects directly lo expansion 

port socket or motherboard 

Complete kit Ordef As LW96E Price £10 95 

Full construction details in Maplin Projects 

BookS Order As XA05F Price 70 p 



ZX81 INPUT/OUTPUT PORT 



T wo b i -d i rectionai ports for a total of 1 6 < nput or 

16 output fines 

includes one buffered output which can 

interface directly to CMOS 

On board address selection allows for 

expansion to 6 ports with two boards 

Complete kit Order As LW76H Price £9 25 

Full construction details In Maplm Projects 

Book 4 Order As XA04E Pnce 7Qp 



MODEM 

A CClTT standard modem [hat connects 

directly to your telephone line visa BT 

approved transformer Transmilsarvd receives 

Simultaneously on European siandard 

frequencies at 300 baud May Paused to talk lo 

any other 300 baud European standard modem 

including the Maplm Computer Chopping 

modem on 0702 552941 and any 

British Telecom Data! 200/300 Service modem 

The modem s computer interface is 

RS232 compatible 

A complete kit excluding case isava liable Order 

ASLW99H Price £39 96 

Fun construction details in Maplm Projects 

Book 5 Order As XA06F Price 70 p 



mflpun 




KEYBOARD with 
ELECTRONICS for ZX81 

* Full size, full travel keyboard that's simple to 
add to y our ZX6 1 (no SOlden ng i n Z Xfl 1 J 

* Complete with electronics io make Shift 
Lock" Function" and "Grapnics Z Single 
key selections 

* Powered ( with adaptor supplied } from ZX81 s 
own standard power supply. 

Full details m Protect Book 3 (XA03D) PrtceTQp 

Complete kit {end case) £21 90 

Order AsLW72P 

Csse £4 95 OrderAsXGl7T 

Heady buiH-m case £29 95 

Order As XG22Y 




ZX81 TV SOUND 

ZXfii sound on your TV set 

Video reversing switch for normal or inverse 

video display Can be used with the Talk -Back or 

Sounds Generator kits 

Complete kit Order As LKQ2C Price £19 95 

Full construction details in Mapim Protects 

Book 6 Order As XAQ6G Pnce 7Qp 

ZX81 EXTENSION BOARD 

Our ZXSI Ex lend i board plugs directly into the 

ZXfli expansion port and will accept a 16K RAM 

pack and ihree other plug-m modules 

simuManeously Parts are sold separately as 

follows 

PCB Order As GBOSJ Pnce £2 32 

Edge Connectors (4 needed} Order AsflK35Q 

Pnce £2 39 each 

Track pins £1 pack needed). Order As FUS2D 

Price 95p per pack of 50 

INTERFACES for MODEM 

Interfaces for most popular home computers 
wtHch dp not have RS232 pons will be available 
shortly Interfaces for the ZX81 and V1C20 thai 
include a complete Machine Cade Cornmunica- 
lons Program ere available Order AS LK08J 
(2X81 Modem Interface Kit! Price £24 95 
Order As LK1 1 M (VIC20 Modem Interface Kit! 
Pnce £9 45 

Full construction details m Maplm Protects 
Book 7 Order As XA07H Price 7Qp 



Maplm EhrCMOtttt Supping Ltd Willi Otter P O Bo« J Raying 
Td Southend |070?i 55W1T (Sales J 

m 161 KnqSl Hammvrwmm W6 Tel 01-7*8 Q9» St* London Road WpitcMlon Si-a Fttri 

?rl 107021 &40DO Linton Squarr Pcny Ban BmrHngWni 1v* |0?1| 35* t2*2 

At pnc» mck*!*- VAT S r,»ni*q< Plrtsr «1d a Mp (wndlirq ttuf-ar to Of dm under t% t«l*l nalup 



>92 VOUH COMPUTER. DECEMBER '963 



HIGH 



SHIPS XXX 




tconttnoed from page J$1i 
Screen score 21 557 21 583 

Score character convert 21634 2 1 602 

Fuetgaugo 21 603 21643 

Refuelling 21644 21680 

Down scroll 21681 -21 72 1 

Crash flash 21722 21746 

Success graphics 21747 213S6 

These subroutine* cannot be tested properly 
at the moment but they should be entered just 
now. 

Bombing and firing is held m Rem 16. This 
should be entered, 
Also add: 

172 RAND USR 21978 - finng 
1 73 RAND USR 22074 - bombing 
174 RAND USR 21603 turf gauge 

Keys 1 to 5 operate ihe bombs and Return Ones 
the bullci j. There is a maximum of two bombs 
and four bullets. Before Running — 100 — add 
the following lines in Basic; 

151 PRINT AT 06: "SCORE 00000" 

152 POKE 16418.0 

153 PRINT AT 23,0; 'FUEL (26 x graphic 61 
graphic H" 

Enter Rem* 17 and 18 These are l he two 
main reset/control ler program*, [f ihr machine 
code has been entered correctly type: 
RANOUSR224il' 

and the complete game should Run. To break 



Tstbkt 












Hem 


Length 


Start address 


End address 


Type 


Purpose 


14 


220 


21331 


21550 


mc 


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IS 


300 


21567 


21856 


mc 


Subroutines 


16 


323 


21863 


22186 


mc 


Bombing and Firing , 


17 


213 


22192 


22404 


mc 


Reset subroutines 


18 


383 


22411 


22803 


me 


Drive contra**! 
program 



into it, prm the zero key. If n works, then 
congratulations* if not then check the machine 
code for pan two. If you wish to add a title 
page then Poke addresses 22801 and 22775 
with 201. This will let the program return to 
Basic at the end of every game where a title 
page in Basic can be added. 

To complete the program, delete ill the 
Bask except the imnal Rem statements and 
add: 

50 100 tnle page [if desired) 
150 RAND USR 22411 
160 GOTO 50. 

If anyone does not wish id attempt the task 
of entering this large machine-code program 
or has problems in getting n to Run properly 
then a cassette version is available by writing 
direct to the author; F. Hirwood, 12 Upper 
Glen Road, Bridge of Allan, Nr .Stirling. 
Price £3,50 inc. pip. B 



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VOUH COMPUTER. DECEMBEH 1 963 193 



SCISDFT 



EDUCATIONAL SOFTWARE FOR 

MICROCOMPUTERS 

5 Minster Gardens, Newthorpe, 

Eastwood, Nottingham NG1B2AT 



ATTENTION: 



PARENTS, TEACHERS, RETAILERS 

DO YOU WANT THE VERY BEST )N 
EDUCATIONAL SOFTWARE 

Now in FULL COLOU R presentation boxes' 

BEST PROGRAMS BEST PACKAGING 

FULLY TESTED IN SCHOOLS. WRITTEN BY TEACHERS 

COMPUTE WITH NOTES. B*Vf REWfWrS 

AVAILABLE N MOST SPECIALIST SHOTS* 

A STAR READER 

V" Pack a. Pack & for 6 1 1 y«»rsofclSP 4.FK 

Improve vour rp#(frng jsA-rf/y Uses some machines code * most of 
a 48 K Spectrum. also for Dragon 32 

WIZARD BOX 

AIAqm 

learn foretgn vocabulary Set 9 qua, spelling etc Very versatile 
ZX, $F, OR 






JUNGLE MATHS 



For 5 13 years oM 

Dare you cross ouffi/ngiet + . -, — .X gel the sums nghr or else* 

SP t BBC. DF, ZX, (BBC 8 * A> 

ASTRO MATHS 

For 7 1 5 yevs old 
Save trie Gaiety ' To do so you must answer problems on fractions 

b decimals 



4$& 



MIDDLE SCHOOL MATHS 
(B.B.C.B, 

Peck 1 , PoCk 2. For 9 13 years old 
\ programs on each. Su 
NOT TO 8£ MtSSEDf 



s ^ Su fabulous programs on each. Superb value 



PRICES 
ZX81. Spectrum €6 95. BBC Dragon €7 50 ♦ SOpp&p 

Also: Our HIGHLY ACCLAIMED range 

of STUDY PACKS for older pupils now 

also available in Colour Boxes complete 

with REVISION NOTES. Prices £8.00 + 

50p p&p 

PHYSICS, MATHS, CHEMISTRY 

SP+DR+ZX 

BIOLOGY, COMPUTER LOGIC ZX + SP 

ONLY £8,95 

• DEALER EhOUIHIES wf LCOMIO * 
**r* SP ■ Sp«.if un> 4SK OR - utnqtn M. BBC - BBC Mkn B ZX - UK ZX11 



EPSON 
PRI NTBRS AT UNBEATABLE PRICES 



Epson ftX SOT 
Epson KX aOPT 
Epson FX80 
Epson FX LOO 
Epson MX100 



-* VAT 
__ - VAT 
4337 * VAT 
S.40B • VAT 
1390 • VAT 



Suu-SlO 

CT1 CPflO 
MTBO 



1M1« VAT 
433B I VAT 

UBS I VAT 
*»TO * VAT 



Seiko»h*GprooA asst . vat 



STAR& 1 EPSON - THE BEST ON THE MARKET. 



All printa scarry a 1 Year Guarantee arid oome with 
paper Shipment is t^ TNT Overnight. E> tir 

door - Please add 47 » va tga. . 

Pay me n t by Cheque , Access . Visa etc . 
A 1 1 pness Apply to 3 1st August 1 983. 

i pmertts thrctiighoul 1 1 
export to Wee mtl 

[or Access or Vi 

' ills 

Micro-Spares 

We cannot and win not be beaten on Price! 

Note our change of address 

104-106 Hanover Street, Edinburgh EHB 1 DR 

031 £26 3345 



EDUCATIONAL SOFTWARE 



pducare s 55 



ZX81 

SPECTRUM 

SUPPLEMENT 

£5-95 5^5 

[ All prof I'm li»1 IK lUl I 




MICRO 

fUH-I A mi M*M 1} 



WITH COLOUR. SOUND AND 
OT HE A ENHANCEMENTS 



PROGRAM S WRITTEN SV 
STRUCTURED FORM 



£7-95 



110 | 



^> 



Then ptograma cover a wealth of batic concept* every ch*6 
wM meet In primary education Thwy arm produced by ftrvttttktoai 
educator * and ha** tte*f\ thoroughly laned in e primary tchooi. 
Qottgned io go beyond drill A practice they promote lemming 
through interaction ana dtecovery Program* rmrtg* item counting 
and nttnokt arithmetic to ones demimn with volume, balance ami 
direction, mottty In form of gemes Each program la *notl Put 
po w erful and comet with tuM documentation. 



17. — 


f>hHM M«i mama ***«<•* 10 •» M9\ Ihhth 


iDUC-VAf 
1 US* tteaem ft 

Londwt 

SWIX (AT 


M 


tarn* {.«•*«• t 10 •■ IK ««« 




... », ... . . . ... 




■*_ ...... _....______..„,.. . 


1 







LH fov CPM i 11' n r.t hi, S«>| no. 



re 



194 YOUR COMPUTER DECEMBER ! 98 3 



ATTENTION ALL ZX81 AND SPECTRUM OWNERS 

Introducing the new 
Ricoll compatibles 

Guaranteed quality and reliability at sensationally low prices 



Keyboard RIKB1 




I jit imagine how good it would be to turn your ZX&t or 
Spectrum iJito this attractive model with it* professional 
typewriter keyboard ifiill A\ keys pluf spacebar) and 
rugged all metal body 

It'* not only good looking, (here's ■ 1st of features 
beneath the gleam mg Made fmfsh and the price 
show* how eaiy we've made it turn the drrani 
into reality 

• Ad|ust*b)e rising ol PC B virtually 
cJ im inatp* the famous wobble' and provide* 
a complete choice of add-on pant 

• Simple Connection, rto K>ldcnnfu no special i kill* 

All you need is a scrrwdnvrr arid pliers 

• Complete with full instruction* 

• Double shift key 

• Switches have gold-plated cunlacti and a guaranteed life of 10* operatio n* — 

• £^n<Hnically khap^fntntcn*ur»ca*y operation T^Ti^ - ***al rlJQQed GOnS" U"_ _ 
fl* sure to it ate whether ZXSl or Spectrum lypf mourn*/ 1 All * ** ~ — "" 



Sound Generators 



16KRAMPackRI161 




RISG 

Nowyou'Elbcablclo 
add those exciting 
sounds ywvc always 
wan led Out new found 
generator RISC, 
specially developed for 
the Spectrum it 
prosrammahk tu 
product virtually any 
sound, animal*, birds, 
cupkHhr*. bomb blast* 
mint etc. 

• Completely 
prujtrarnmable 

■ Us*» (he popular Gl 
OiipAY3»9IO 

•ooifiuninTN 

DEMONSTRATION 
CASSETTE 

• Sturdy piaotK case 

i Own speak er and amplifier 

i neatly into the back of your 
computer • nosoJdenn^ 

RIFG 

Our super sound generator has everything that the HI SO 
"flcr> ptui programmable h«h quality low pus, high 
pass, nr band pass filter Thi* additkma I drcu itry offer* a much 
wider range and control of the generated sound* 
Additional feature the provision of two H bit input/output porta. 

• Special introductory prices on ,^ 
generators until 31sl December ^* 

Sound Generator Software 




Increase the power and potential 
of your ZXSl with our 'stale of the 
art 16k RAM pack Wrve used ihe 
latest technology Id reduce the 
number of I Cs and give you better 
efficiency and improved 
operation 

a Very Jo w puwer feature when 
used with our keyboard RIKHt 
the drraded wobble'. 
1 i> vertical in j and memory Jam 
become things of thr past 
f expand ihk: to 12k by simply 
plugging m extfa RAM chips - no soldering' 
See our special offer' 
* Sturdy plastic case , __tr,mi 

• Fttt neatly into t TlZTZrT technology^ 

rear of computer 




Special Introductory Offer 

If you upgrade In 32k within su monthi of purchase, 
wt will supply the necessary chip* lor your Rl 161 at a 
special poc* of only £1175 inclusive o( VAX (pAp £100) 



roo.95 

'aaamaaaal^inr VAT 



pipEI.H 



RICO LL 

MIC TRONIC S 



Ricull Hcclruiiks Limited 
■WJ Soulhpurl Road Uimskirk 
Lanes LWIQR 
Tb\0tmm0h4 Tde\ 627827 

PtrtOHOl i. 'after* Wttnrmr 



lb help you gel the most fmrn your touod 
comprehensive cauettc which offer* a 



we've developed a more 
u( sounds t3 SOptua 40p p*p 



Buffered Motherboard 



Of special interest to educational establishments and serious hobbyists 

tight slot expansion bufhrad motherboard for Ihe Spectrum enables up to eajht 
■do-on boards to be fitted and operated with complete security 

Full data sheet available soon 



Ptaaa* aand mn f lnai ttrfi (1m ti anair* rjpmacf fgMf 

| DnevOoaroPiKar * 137 96 C*J» C2 00 p*fj My crjnvuwr « Q ZKB1 Q SPECTRlM | 

3 ' » ***• pics ri i si tot zxat at e» «&**■ c i n pap 

■ DErtiH*JrfSp*«Oafrtar«iaiBlCOrbfiUitiaopati 
I D3<x*«gaf*i>fai^RrSG»*e^<>»<o^pne*C?f|Ai»iTpc>*c 

I □ Sound casanfla tJ Me*J»auppAp 

I 1 anctoaa cnwrJuB.TO payafcat In ftaat Elac ln yM a Kaal t 

I 

I 

I 

| Attdraaa 



Pbatto ft«*£ teutonics Lunged 4a Southport Hoad Onrnwrt Um IJ9 H» 

Piaaa* a«p<w HI oavi tor dakvary 



VOUR COMPUTER DECEMBER 1»B3 196 



~ 



New computer books are cropping up everywhere. 

Here's the pick of the bunch. 




MASTERING THE 
COMMODORE 64 
by A J. Jone* 
and G. Carpenter 

Content*: Review of BASIC: 
Some BASIC Tools, 
Manipulating Data; Memoir 
Management. Sound: Principles 
of Graphics; Moving Graphics, 
Peripherals: Input /Output: Intro- 
duction to Machine Code 
Programming on the 6510. 
Using an Assembler 'Editor; 
Tables 

Dec*mber'83 approx, 260pp 

065312 664 2 £6 85 

Publnhed ty CM Hotwood Ud, and 
iwMkj by John WUay and 




GETTING STARTED 

ON THE ORIC-1 

by D.G.J. Cole 

Contents: Introduction to the 
Machine: Talking to BASIC: Use 
ol the Cassette System; Again 
and Again (Loops and Then 
Use*); Same Mathematics; 
Graphics. Conditions and 
Strings; Sound; Ordered Storage 
(Arrays); Subroutine*; Table*; 
Appendices, 



December 83 
0SS312 6S6 9 



approx t20pp 



Publish*] bi EUu Homod L»a. 
markviad by John Wil*f aiKi Sen* Ud, 




MASTERING THE 

ZX SPECTRUM 

by Lawrie Moore 

This book La about how to enjoy 
your Spectrum through 
Learning programming and 
handling the machine: it dispels 
the menial block which some- 
time* occur* for beginners, that 
of grasping and understanding 
the building of a program. 



appro, ISOpp 
IS 95 



December'83 
0*4313 700 31 

PubbalMd bf EUu Hormxid lad. and 
mark**) br loan Wilrr **d Shi Ud- 




THE SENSIBLE 64 

by D.Hlghmore and L.Page 

Topics covered in ihii book 
include- the keyboard and 
(unction keys; user -defined and 
multicolour graphics: screen 
displays and bit mapping: 
creating and using sprites, 
sound effects and music: 
programming with a disk drive; 
using a graphic printer. 



November S3 

MOT 03 003 



approx. 



izapp 

£5.98 



Ftbealwl bj 

Joan Wl»*y Hid Son 



Mtetoooaka and mitbMd by 



GETTING MORE FROM 
YOUR NEWBRAIN 
by Andrew Pepper and 
Michelle Clark 

The New brain computer is fast 
becoming one of Britain's most 
sought after micros. 
In this book Andrew Pepper 
and Michelle Clark guide you 
through the machine's 
capabilities and a BASIC pro- 
gramming course, and then into 
specifics — how you can exploit 
your Newbrains 32K of RAM 
and excellent interlacing and 
expansion facilities — saving 
and retrieving program*, 
datatype's. New brain streams. 
control statements, numbers, 
arrays, strings, graphics, 
programming discipline, and 
New brain operation system. For 
business and technical appli- 
cations, or for use in your own 
home, your copy of GETTING 
MORE FROM YOUR NEWBRAIN 
will make your New brain 
perform at peak efficiency, 



Deeenvber'33 



appro* ISOpp 
appro*. £7.50 



PUbWud by Stoma r«ctaw*J *>■•■ and 
bf joe* Wik-y and Sana Ud 



HOT PROGRAMS TO 
FEED YOUR DRAGON 
by M.A. Smith and 
GPS, Robinson 

This book contains not only the 
bast programs for your Dragon 
(or Tandy Color Computer) but 
also a full description of how 
the programs work 
The book divides naturally into 
four section* 

ADVANCED GAMES: These 
include 3d-5tib Munf t complete 
with Radar screen and Sonar). 
Golf — which realistically uses 
joysticks to control ball speed 
and direction. 
SOUND AND GRAPHICS: 
includes Synth — a full sound a 
and music synthesiser with 
graphical output. 
BUSINESS: For the business user 
or the Dragon 32. there is a full 
Word Processor, a Telephone 
Ceil Costing System and an 
Mormstion Retrieval System. 
UTILITIES: These include * 
utility to convert Tandy tapes to 
Dragon format and vice versa. 



D«c<Mnt>er~S3 

0809104 SIX 



appro*. )60pp 

*(jpiQi £6 95 



KbJMMtd br Sajnts Technical Trwmm 
km* bated by )oha Wu+y aad tarn Ud 




USING BBC BASIC 

by P.J. Co eke re 11, 
University of Kent at 
Canterbury 

This book aims to develop both 
skills in BBC BASIC and a more 
intimate knowledge of soma of 
the special features on the BBC 
Microcomputer Programs as 
well as text ate presented in an 
easy and accessible style. 



PecenuMr'sa 

0471 90242 X 



approx, 3B2pp 
appro*. £6 M 



DISC DRIVES FOR 
MICROCOMPUTERS ; 
How They Work and How 
to Program Them 

by M. Browne 

This book describe*, for the 
non- professional computer user, 
the workings of disc drives and 
how they affect the sort of 
program that can be written. 
Disc drives have been m 
general use With computer 
systems for many years but it is 
only in the last few years thai 
they have become available to 
the microcomputer user and 
only new are they becoming 
available at the right price for 
home computer users. 
One of the main features of the 
book is a detailed explanation of 
perhaps the moat import an I of all 
access methods, the Index 
Sequential Access Method' 
(ISAM) and a section on how to 
create your own ISAM for your 
computer, The book includes a 
full explanation of record and 
hie design. 

October' 83 approx I44pp 

0*46183 10 2 £S9S 

nitilJMWrt by Smctau Browiw Ud and 
iwtAd by John Wjlay and 3t)M Ud 



John Wiley are major publishers and available by other leading publishers including 

distributors of books and software for the Ellis Horwood, NCC, Sigma Technical Press, 

computing world. As well as Wiley pro- Sinclair Browne and Suits Software, 

fessionai reference books and software an ex- Ask for further details now at any good 

tensive range of titles for the student and hobbyist is bookshop or computer store. 




form Wiley A Som lid - Baffins Lane ■ Chkhnter - Susttft. POT9 HJi) - tngUnd 



1H YOUH COMPUTE*. DtCEMBEfl 19B3 



Damian McComb 
concludes his series on 
Vic-20 Basic expansion 
and we repeat the listing^ 
from his previous two 
articles. 




/tfaW?. 



This. month is ihe third and final pan ol'ihe 
extended Basic program tot the VicOO with 
JK expansion. Idlings from the prtviotu two 
a nicies have been included as well as the litul 
part of the program, t must stress thai you 
must use a 3K expansion and no oiher type 
since they use different memory blocks. 
However, u' you have an expansion !v.n J you 
may use additional SK and lr»K packs along 
with, the JK. When you type in and ran tin- 
three extended Bj>k programs one alter the 
nt her. the lam 

CBM BASIC V2 
message should appear You must now type 
the EbUowiltl command, which protects the 
program from heme overwritten, before any- 
thing else: 

LOMEM 2830 DOKE 2829.0 NEW 

You arc now ready to use ihe tic* 
commands. Remaining commands include: 

Trot* A: Parameters — A ■ 0, turns l race off; 

A" I. lurns l race on. This command puts ■ 

trace on a Basic program while running The 

leonttrtued on tutQt* J99) 



EXPANSION 



SPRINT "••■VIC EXTENDED BfiSIC" 

PP I NT" ■*-»►«!; OP VRIGHT 1983" PRINT aiMIHHIIIB 



i m.tmg I 

FOR "■" READ INVERSE POUND SIGH 
9 P0KE56,22P0KE55,7 CLR 

1 P0KE36S79 . 238 PRINT"3»ia 

2 PRINT'IM 

v 

3 PRINT"MimialDflMIAN MC COMB" ; PRINT "JlOMiMty LEASE WRIT,,." 

7 REM ** 

8 REM ** INITIALISE 

9 REM ♦♦ 

10 DRTR20,46,04,20,lR,04,58,4C,7B,E3,ft2,0B>BD,26,04 
20 DRTR9D , 06, 03 t CR, 10, F7, 60 

30 DRTR3R, C4 , 83, C4, 79, 05 , DB, 05 , 0E , 0b , 34 , 06 

40 BRTR2C, 11 , 91 # 20* 34, F7, 20, El , FF, D0, 06 - 26.49, 04, 6C, 02, C0,4C, 56, FF 

50 DRTR20, 6D, Eft , 28, bB, ER , 20, F9,FD .. 20, IS, E5 

60 DRTRR9, D2, 8D, 16, 03, R9,FE, 80, 17, 83, 60 

67 REM #* 

68 REM *# BlSPfiTCH 68 REM #* L0CRTI0NS 

69 REM ♦♦ 

70 DRTA89,FF,b2,06,RD,06,B2,06,C3,06,D3,06,2£,07,5C,07,63>07,82,07,97,07,RE.07, 
Dl, 67, £6,07 

71 DRTR0F. 04, 33, FD, F9, 07, 07, 08, 15, 08, 2F, 08, 53, 08, 63, 08, 91 -08, 9E, 08, RF, 08, D7, 08, 
F7, 08, 17,09 

72 DRTR3R,09,70,09,B2,09,20,0fi,42.0R.59,C3,17,E5,57,0R,83,0*,99,0R 

73 DRTRD2, 0R, E3, 0R, F4, 0R , 81 , 0B 
84 BR TR ENB 

87 REM ** 

88 REM ** TOKEN TRBLE 
39 REM ♦♦ 

90 DRTR52,45,53,55,4D,C5,4649.4C,CC 

91 DRTR43,4C,D3,45,52,D2,57,49,4E,44,4F,D7,53.4F,55,4E,C4 

92 DRTR4D,55.53,49,43,R8,49,4E,CB,50,41,50,45.D2,42,44,D2,41,55,D8,52,455,50,45 
41, D4 

93 DRTR50, 41 , 55, 53, C5, 43, 55, 52, 53. 45, D4 , 52, 45, 53, 45 , D4, 4B, 49, 4C, CC 

94 DRTR4C,4F,4D,45,Cl),48,49,4D,45-CIi,53,45,54,43-41,53,C5>42,52,45,4l,CB 

95 DRTR49,52,D1.-42,45,45,D0.46,45,54,43,C8,43,4C,C4,43,53,D6,42,4F,4F,CD,5R.41, 
D8 

96 DflTR50.49-4E.C7.4D.4F,44,C5.52 1 45 J 4E.55.4B,42,45,D2,54-52,41,43.C5,44,4F,4B 

C5 • 50 • 55 p D4 (htttng I Citntmued an fhtift' t99l 



rOUH COMPUTER KCEMBEH 1983 19? 



y&r Twr ^SX5MSM5Mnt5M5MSM5MSEMSMWEISMSMSA 



l *$fU- 



£t 



X 



X 



• -I 



i»* 



MIDDLE EARTH* 
ADVENTURES 

for the same micros as Snowball 

Each of these games has over 200 
locations and a host of puzzles 
They can be played singly or 
togelher as an impressive 
trilogy Each game could 
well take monihst© 
solve 1 

1) Colossal Adventure 
The classical mainframe 
game Adventure ' w»th all the original 
puzzles plus 70 extra rooms. 

2) Adventure Quest 

An epic puzzle journey in Middle Earth 

3 1 Dungeon Adventure 
Over 1 00 puzzles to solve as you explore 
the dungeons left by the Demon Lord 
- outwitting their guardians 

Pnce £9,90 each (inclusive) 
Level 9 adventures are available from 
good computer shops, or mail -order Irom 
us at no extra charge Please send order, 
or SAE tor catalogue, describing your 
micro 10 

LEVEL 9 COMPUTING 

Debt V 229 Hugbenden Road, 
High Wycombe. Bucks HPl 3 SPG 



SNOWBALL 

at £9.90 is a great new adventure for: 
BBC 32K COMMODORE 64 SPECTRUM 4 S k 

LYNX ■ NASCOM ■ QRIC . * ATARI 400 80O .r 

Snowball is a massive adventure with over 7000 locations it took nine 
months to perfect and marks a new leap forward in adventure games - 
rt has a detailed planned background and is set aboard a huge starship 
that would really work Snowball could be a glimpse ol the future' 

You play Kim KimbeiFey. security agent Your mission is to guard the 
colony ship Snowball 9 from sabotage 

Thus when your freezer-coffin wakes you with the Snowball shJI m 
flight, you know that something must be very wrong You're weakened 
and disorientated by lengthy hibernation, but the fate of the S mile long 
space- shrp i$ in your hands 1 



Snowball is our new fourth adventure Here s what the reviewers have 
just said about the lust three 

The Level 9 Adventures are superbly designed and programmed, trie 

contents first rale The implementation ol Colossal Cave is nothing 

Shod of brilliant, rush oul and buy it While you re at it buy their others 

loo Simply smashing'" **» „ 

- SOFT! September 83 

"Of the programs reviewed here, the onty one that is wholly admirable 

is Level 9 s Cotossa I Advent u re „ 

- Your Computer. September 83 

' I found Dungeon exceedingly welt planned and wmten, with a fast 
response There are well over 200 locations and the descriptions are 
both lenglhy and interesting" 

- Computer & Video Games, September 83 

This baa to be the bargain of the year tf adventures are your game. 

then this is your adventure „ „, . 

- Home Computing Weekly, 30th August 83 

"There are three excellent adventures on offer from Level 9 the 

descriptions are so good that few players could fail lobe en snared by 

the realism ol the mythical worlds where they are the hero or 

heroine . great tun to play , 

- Hffiich Mcro? A uaust 83 



•fc** 1 



' 



\' : 



4&Y 



A. 



^ 



ISB YOUH COMPUTER DECEMBER J983 



filming J cafltmuetf from page J97) 



m mam *» - i smi h -i « h •' "■' «* ' J - 1 -' c* 

Li* gnran.EMB 

117 «r «• -in — VICTOR LI? »Ot *• 

111 PATH20.HC C3. *•••»• t* ■ •.*» 

SI) »T«9-J ».X 

I i« MTf»4 . 1 

tit nifts.f! n « n i:- cj,m ■« it 

14 »TffllH.«H F* --t.».F« 

l» »W( M i« II *»C« l.< FMI H »,» 

{fit BATMCn.** .'•! 16 ■^-CCW.F* 

i?i mnu.ii.|},F|,n.t>.fl.ti.»i : (.H ft 

la VtTACJ.HH 

111* WTflC? f».Ff dl Ffl i» C*i: »fe.Ffl,f|.» 

£•* tMUftM-f Ft J,CC.».2i,il 

210 »T*3e.£!i.L'l ** *l O » FF 

23* »T*rt. *».*•■ C», W »1 W-iS FS.je.f 5 

*» »T«* ►? Il ft* » »-i* Jl-.ff M F? 



J 40 fMfMC £* Z*> *"." I 

m i»-TfiHs-w sio.jtrj.w .c»<fi,». h.q feh.if.o.ci 

.-JO (W**i <Hi » :t i» *4 t» y #1 48 It "5 *9 

••-= *f p »» I- • I 
■ ' - 

,*». -->W»I H lit 

nae [ 

:t;o i-CAHoe* «rft m i-r-a ooroino 



B1M00 ' '.• t [ '< 1-1*1 C«j*jl^l0 



. 



**H*n 



current line number is displayed m the top left 
hand corner (if the screen and the program can 
be paused j[ any point, to view ihe I mi- 
number, by pressing (he Ctrl, Shift or 
(kimmodorc keys, 

Dakt -f B: Parameters - A U> to 65535}; 
B{0 to 65SVS). This command is similar to 
Poke, only il is used to sei words — two byres 
of mcmim ji j time instead of single hyiev 
For example 

DOKE 0, 1000 
would put 2 32 in 0, and 5 in I . 

I'm I: I'arametcrs — A ■ ASCII value 



(0-255) repeatable this will oui a character or 
liruup of characters separated by commas lo 
the present nuipul device — usually the 
screen For example 

PUT 66, 66. 67. 3?. 48, 49. 50 
will output: ABC 123. 

Brk produces a forced break on che Vic-2" 
which is i he same as holditm down Kim, Slop, 
and Restore- 

Setxrttit resets the Screen to n* delault 
status. That is to say il will reset the Ink, 
Taper, Hot. Window and rows and colli inns ol 
the screen. 



— A - (1 Of I , This 
ine up or down — • 



Scroa I I'araim 
scmlls the screen o 
up, 1 = down. 

UiT f I'utamcicrs — A * ll of I TWl 
enables and disables the ijssette motor — ■ 
enable, I = disable. 

Jay reads ihe unstick and returns a value 
according to direction: ■ no dirt 
I - up, 2 - down;-! ■ left. 8 ■ rir 
(in button. 

Remember thai the lire button can be used 
with any directum and diagonal directions 



•unit! 



t isftm, 


2 


498 


PER FILL 


see 

FB 

518 

-FC 

520 
.68 

531 


DRTA20.5D,06,Fl5, 14,S5>F^,R5 J 15, 85, FB, 20, FD.CE, 20,50.. 06, R5, 14,35, FC>A5« 15, 85 


DffTfl20. FD, CE, 20, 9E, D7 J 3Fi,i=i0, 00, 51, Fft,fi6,FB, £4^0^8^84,66, 1 1 ,O6,06,A6,Ffl, £4 


DATft60,09,E6.rri.D0,Eri,E6,FB- 18,90, E5, 20, 79,00,C9,2C,D8,86,28,73,06, 18, 96- 66 


REN CLS 


54o 


DflrRH9-?3.4C.09,El 


551 


-EfT ERR 


560 


fiRTfi20,9E J D7,E0,00,F0-04,E8, IF, 98, 63, 4t, 43, D2, 4C, 3fl,C4 


571 


REM WINDOW 


580 


DRTR20 ■ 3E . D7 - 8£, 06 . 90, 26, FD, C£, 20, 9E, 07, 8E, i , 90 , 66 


591 


REM SOUND 


em 


DRTA28. 9E, 07, E8 , 04 . 98 83. 4C, 48,02,86, FF , 20.FD-CE .20, 9E*D7,fl9,F8,20,8E, 90, 3R 


eiQ 


DRTR8D ■ 8E ■ 90 >.5D,0E, 90,20, FD ■ CE ^0 , ?E Dr . 3R,R€, FF, 90, 0R. 98, 26, FD,CE,20, SB, 06 


• E6.J 


4 .£6. 15 


^20 
S 38 


DRTRR0,05.H2,00,CR.D0,FB,33,D0,F8,C6,14,D0,F2*C6,i5 ty. ZE .riJ,00,fl6,FF. 90,0R 


ORTB20, ?9, 80, C9, 2C , 00 , 66 ,^u ■ T3 , 60 , 13 , 90, R6 - 60 


540 


REM MUSIC< 


6so 


0RTRR2, O0, 3E, 06. 01, 20- ?E, 07. R8- 8m, RE- O0, 61, i^D- OL 01- E3,E8, 66, £0,06-20-73,00 


DATRF0, 07 C , , l , Ft? . £. • Cfl > BD, 01 > 31 , 3D 1 0A- 3-0 . Cft, 1 - F7 . 66 


$69 


REM INf' 


z"70 


DhTh20.3E, 07, 3E- 86,62,66 


■ 


REM FRPER 


636 


DRTRR9 - BF ■ 85, FF . 20 ■ ?E ■ 07, R6- 01 , 8*, 6fl, 0R, 8R, 0fl, RR, R5* FF, 39, 0E, 96, 99, 0E , 30 , 3fi 


s?e 


0RTR 1 9 1 0E , 30 - 99 , 8E , SO - 66 


699 


REM BDR 


700 


DRTRRD, 0F , 90, 29 . F8 • 3D, OF, 98, 20, 9E, 07 8fl >2 J 07 . 00, OF, 98, SO, 8F, 30, 60 


70'? 


REM R>. 


710 


DR TR20, ?E, D7, AD, 0E , 98, 29,6F,30, OE,96,SR,0R, OR, OR . OR.OD.OE, 30. 30, 0£, 58,60 


71? 


REM REPERT 


720 
738 


ORTR20, 3E, 07.. 3A, C9. 03. 96, 03, 4C4S. 02, C9, 62, F0,0E,C9, 01. F0, 04,30, 3R, 02,68, n- 


DRTRSD,&R,O2,60,fl9,30,8O,Sfi,02,60 




REM PRUSE 


748 


0RTR2S. 50 ■ 86 ■ E6, 14, E£ , 15, R2 -O0 . Cfi . 00, FO, C6.. 1 4, B0, F7, LG> 15, 08, F3, 66 


'49 


REM CURSE! 


750 


0RTR20 1 9E , 1*7 , 36 , FF , 20, FD , CE , 20 , ?E 7 3 . R4 , FF , 1 3 , 4C , F0 , FF 


P59 


REM L0MEM 


?68 


DRTR20, 50, 06, AS, 14,35,26, AS, 1S,85,2C 4C 64, C€ 


7^9 


REM HlrlEM 


7 70 


DRTR20, 50 , 66 ■ AS, 14, 85, 20, R5, 1 5, 85 , 2E . 4C, 64 , C6 




REM 5ETCRSE 


P88 


DRTR20, ?E . Or, E0 ■ 02 , 90, 03, 4C , 48 , 02, E0 , 01 , 00, 06, R9 . 89, SO, 31 , 02, 60, R9, 00, 80, 91 


■ 02 c 60 (fating 2 continued on tw*f page) 



rOOR COWPUTEH, MCEMBCR 19B3 199 



may be used so combinations of the above 
values may occur, e.g. t up + fife ■ 129. 

Pen A n-jili i he horizontal and vertical 
component* of (he light pen. If A-0 the hori- 
zontal is read; if A * 1 the vertical is read. 

Pad reads the paddle controller. 

Key reads the keyboard and return* the d li- 
ferent value (or every I 

Swiuh returns the mjius ol the cassette 
switch. 64 means it is oil"; means it ti on 

Because I tried to keep the Basic extension 
program 10 short — L7K — ihr* has mejni .i 
leu, minur drawbacks . . . 
■ (ximnund abbreviation — such M P tl 
lor Poke — are m>i available fa die new 
command! 



after a Then statement you must place a colon, 
For example 

IF X THEN FILL 7B8 . B1H5 r HI 
This is the same case tor any Basic extension 
on ihe Vic including the Super Expander cart- 
ridges, 

■Some of the new commands occasionally — 
in direct -mode only — cause a syntax error 
even though they are still carried out. Do not 
worry about ihis as it does not aflcci ihc 
execution of the commands in any way and il 
ne vet happen* withm a program, There are 

%eVeru] ways "! JMmiiiu: the ^ntj\ HTOEtj MM 
of which is to type a colon — or two — after 
the command. For example 

RENUMBER 100,20 



One point in favour of the Basic is that all 
parameters can be constant, variables or caV 
ciliated using other functions. For example 
PAPER 2 
JNK4-N+3 
WINDOW SlNUriO.COS(J/2>*15 

[f you missed the previous instalments of 
this scries, 1 have a cassette available contain- 
ing the extended Basic, demonstration game 
and a few other demonstration programs along 
with a reference manual for £5.00. 

I also have cassettes of my other two pro* 
grams published in this magazine — Saucer 
Attack and Grid mama — for £4.00 each. Make 
all cheques or postal orders payable to 
I J McCoob, 23 Woodlawn Drive lHin- 
gannon, Co. Tyrone, BT70 1AJ, 



tksimg 2 tammutd from previous p*ge) 



m 



■-:; 

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ftfttMA».tt «i M.U OK4t 

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nifw».*i m tr w *i zmttttft*** .« j 

Mm civ 

«*i«* r* w •* i* .as fi .« is as ** .-* f: 

|ATM».«».M.ai.» M »C 4 H A* IS.4C M *F 
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ITS HtBiC » M«C «,».«* 



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,~T«M B»,F».Ll M M M ri *• 

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*» w»t«w«. «.*.-.» h-m is «,**.». t».».r* a.ir.an # M.ei.as fmw 

f •» 

*; »tiib i« m.# f; « « <t « w «.«.if »« if a h i <m>,a.0.» m 

n »f ra.Fj 

Mt Mtn HtoMia 

»tf »**» ii f l* « «fl .IB ti.*.;(.ifl H-tt-» II K-35 ri Ci,|i.|).;' 

■a.a? 

.^«i w.n <j m.«i t«i«iii; l «N<i l i J .i«i;?iuj),aiii!,iirt 

l*. M 

l|4 »*«< IS *F»».«.M -Ft. **-♦*, I*. M CI 

!«*• rotrtMUKTOtm *CWM !«•• • * 'NCMQMt 

I* I* <jO*k>tlMlfc< 

w -• - » fCrt> 



ittttt If) 3 

18 PFTNT "."SFLEFlSE WRIT,.,^ 

3<3 REM TRflCE 

108 DftTR20.3£.r>r.3fl,D0,0B;H9.OE.yD.08,03,A9.06,SD,09,03,60,fi9,CF,3Dv0fi,03,A9,a9 
■3D, ©3- 03- 66 

104 HriTRfl5 -3D, B0»3£, 38, £6,F0.FF. 86. Ffl, 84, FB»R1>, 36,92, S5,FC,h5,C?, 35- FU> fl9. 14, hl@ 
■ 0R 

106 IiflTflt-0, IE, CB, 20, C9 , DD - Rb - Fri R4 . - B ■ 1 3 , 20, FS, FF, R5 , Fd 3B » 36 ■ 02 ■ RB, 3D . 02 . F&* 0D 

108 BftTflft0,FF, R2, FF, Cfl . tR , £R . tlh D0,FA, 8S,B0>F7 , R5, FB,85, C 7 

110 DRTR4C .0E -06- i: l2,9e,3C,20.28>20,29,2e,3E, 13, 15,00 

1 1 9 REH BOl E 

120 BRFR20- 5D,06 . R5 . 14 . 35 , 06 , R5, 15, 85, 01 , 20 FB CE . 20 58 . B6; R5 . 1 4, R@, 00 
1 I 5 HRTR5 1 . 00 , E6 , 00 , ?0 02 , En 91 R5 , 1 5 ? 1 , d8 , 60 
129 R£H PUT 

1 BRTR20 - ?E ■ B ? i- 26 ■ #9 - E 1 . 28 - 7 3 ■ 86 C9 c C D0 0^, 00 . 1 -EC, 60 

* FEM :-CPuLL 

1 40 BRTR20 . 3E D?,E0,00, B0 . 03 . 4C - T5 . E3 - 33, 20 - F , FF . 3h - R9 0fl 

145 DRTft20,l£.CB, 68, AS, 68, Rfl, 13,20. F3FF R9, n , 3D, 94,20,00 

143 REM MOT 

1 50 DATR20 . 3E - B 7 , RB , 1 C, 91 , E0 08 , B0, 06 > 2'3 - F3 , SB , 1 C, 3 1 , 60 9 dC ■ •: B , I C - 3 1 , t o 

L53 FEN II 

160 DMTRry,n2-rF,3E,^2^i K. 2U 31- :c;0,?l D0 FF . 5E ■ 22, 31 . d2 r ^ -E-20,31 

162 BRThhB ■ 1 F ■ ?1 . C D , 1 - , 31 , B0 . F3 43 _ . 4R, C0, 38 30 3 10 , ft8 . 63 . 29, 20, C9, 20 

. 38 . 6ft 
165 BRTm4-..E;Fh8,4C,R2,B3 

3 REM REM 
1 T0 BATR20 - 3E, B7 .. EO , 02 99,03*40 ■ 48*B2, ED, 06* 3u , RS, 4C R2, B3 
173 REM PfiB 

1 88 BRTR20 1 3E , b? ,E& 02 3u 3 . 4C 48 D2, BB, 08 3d, h&, 4C R2 , B3 
133 rEM Kt 

1 36 BRTRR5 ■ CB, RE • 3B * 82 , F0,t^, 03 , 80 * RS , 4C* R2, B3 
139 REM SWITCH 

288 BftTRRB , 1 1 , 3 1 , 29 . 40, ft8 * 4C , R. 
3^8 BRTR 

148© F0RIs7033TO7680:REftBft* IFftS-" ,, THEN500O 
1410 30 -MB 10000 F0kEI,N NF 

58O0 FORI - 1 048TO2840 POKE I , FEEl - I +4688 » NEXT 3VS 1040 
100O0 H=rtSC hi -43 B=RSC;RIGHTf ■ Ri, 1 - -43 M-B^?*<B: 9 +16*<fi+r'*<fi>9>> RETURN 



200 VOUft C0**»VTER. rjfCEM6£R 1963 



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list processor 

fife handler 
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System B2 £695 

System BCt Price on application 

System BC2 Price on application 



Disk Drives: 
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6108 MINI 5.25" 




Incorporating: 12" P31 Monitor and 

1 5.25" 400 KB Drive-System B 1 

2 5,25" 400 KB Drive-System B 2 
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as above System BC 1 or BC 2 



& HEIGHT, S/S, 40 TRACK 250 
& HEIGHT, D/S. 40 TRACK 500 



KBYTES £170 
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6118 1Mb 5.25" DRIVE FOR BBC MICRO £2.00 



POWER SUPPLY AND PACKAGING ADD £65 



Diskettes: 

FLEXY DISK 5 25" S.S, S/D, *0 TRACK f 17 
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Talon: 342518 Hamlet G. 



YOUR COMPUTER, OtCfMBE ft 1983 201 




I! ^pitai s ARl not what they used to be. A 
place lor Christmas in hospital used to be 
WWWtthtng thai Wtt sought after, a guarantee 
of physical and social warmth, adequate food 
and care and attention, Regular Christmas 
ai tenders were welcomed on to the wards with 
weary affection by nursing sisters who 
remembered bst year's complaint and the year 
before. 

Communications lyJCUUI have also lost 
some of the old-fashioned charm of the fifties 
and sixties. Radiopaging bleeps are now- 
universal and have displaced a number of 
ingenious methods of attracting a doctor's 
attention when he or she was needed by the 
telephone operator, or in a different part of the 
hospital 

As far ay I can remember it was the Royal 
ble of Wight County Hospital in Ryde which 
had the most charming system 1 ever saw. 
Column* of either fair or five different 
coloured tights were suspended from the 
ceilings 01 the corridors at conspicuous points. 



When a person was needed I think thai a 
combination of lights was selected, possibly 
with a short bell sound to make people took at 
the new code. 

Dr. Fin lay, for example, would be allocated 
Code Red/Yellow on taking up his 
employment at the hospital while Dr. Kildare 
would be given Code Blue/Green. The colour* 
would have been relevant only to rt infaf CC ihc 
position of whichever i>l the Lulus was selected 
and a column of five lights could produce 31 
combinations. 

Voice message to doctor 

Modern limes have changed all that. Most 
bleep systems wilt now alert a specific 
recipient that he should telephone his 
answering number on the internal exchange to 
■nnected to the person making the call. 
Most svstems wilt have a broad band 
capability that allows the switchboard operator 
to give a voice message directly to the doctor. 
When a cardiac arrest bleep goes oil' you may- 



sec doctors, nurses and technicians running 
down ihe corridors holding their bleep to one 
car while it announces which ward or unit 
they should head towards. 

Less dramatic messages may be held by The 
vh hoard if the doctor fails to answer 
immediately. If the doctor is in the middle of 
stitching a patient^ lacerated arm or is busy 
puitinjt up a drip, the matter will generally 
have to wait. 

If the doctor is unable io answer the bleep or 
cannot ask another member of staff to take a 
message it is likely to go oil again a few 
minutes later, [f (MM is still no reply the 
message may be referred to a more senior 
doctor. 

Heartstop should reflect these things is 
accurately as possible and the construction of 
the bleep procedures for the game is of central 
importance for this is the way in which the 
player's tasks are set. Answering a bleep in real 
life is likely to take between one and ten 
minutes on the initial call but may then 



302 YOUR COMPUTER DECEMBER 19S3 



Program 2. 




DEF PROCbl< 


sepdisplay 


FOR KX - 


[J O .1. .<.. l'.. At 


PRINT BLEEP*< K% ) 


NEXT KX 




END PRO C 





Program 3. 

PEP PROCupmtacM XX) 

LOCAL IX 

IF BLFEP*< SIZE*) (> STRING** ' *,3B) THEN 

PROCstackfull? REM call the consultant' 

FOR IX - (SIZEX-1) TO XX STEP -1 

BLEEP*( IX+1 > - BLEEPS IX) 

NEXT IX 

BLE£P*<XX> - STRING** * *.38> 

ENDPRDC 



involve further telephone calls or the doctor's 
attendance in a different part of the hospnal 

Each time the bleep goes off in Heartstop 
the ^ame clock will be advance by a number of 
minutes 10 reflect ihe time taken to get to a 
telephone. Deciding what to do about ihe 
menage might be dealt with in real-time 
multiplied by five or 10 times, 

tn other words you can take as lone; as you 
like to respond to the bleep message but game 
time will be running at five or ten times 
normal Speed- White you are making your 
decision the program should be checking the 
state of the game and if you run over an 
internal deadline your bleep may go ofl" again. 

The bleep section 

The following function* are likely to be 
needed for the bleep section of Heartstop: 

■ Erase all the bleep messages, In other 
words, clear the stack. 

■ Generate a bleep message by using random 
numbers to Read strings from Data 
statements. 

■ Generate a bleep sound. 

■ Check various events withing the program 
and generate ■ bleep if the game time has 
passed a certain value, for example, or if a 
patient's condition has deteriorated. 

■ Display all the current bleep messages on 
the stack, 

■ Flash an urgent bleep message on to the 
current screen display. 

■ Allow the player to select a bleep message 
to be answered, delete thai message from those 
waiting to be answered, and close up any 
remaining menage*. 

■ Open up a space for a new message in the 
stack. If a new message is urgent u should be 
placed on the top of the slack. 

■ Repeat a bleep signal if there is no response 
from the player. 

■ Call in the consultant if the stack of 
messages exceeds the allowed total or if an 
urgent bleep is unanswered within a couple of 
minutes. This procedure will terminate the 
game with sonic prejudice to the player's 



Program 4. 

DEF F'ftOCdownstack< XX > 
LOCAL 1% 

FOR XX * XX TO SIZEX 
BLEEPS! 1%) = BLEEPS IX+t ) 
NEXT IX 

BLEEP*(SI2E% ) * STRING$< ■ 
ENDPROC 



30 ) 



future references and career prospect!. 

1 had expected to set out listings for most of 
the procedures necessary to achieve these 
functions and show how they interfaced to the 
existing Heart stop program. Alas and alack -a* 
day I did not make a back-up Copy of the 
cassette I was wotking with. In a fit ol 
enthusiasm with the Maplm Modem 1 
downloaded a program for the BBC machine 
from the London TUBS and Saved it on a 
cassette. At least 1 think that's what happened 
because I cannot find it now. 

However, here are the outline listings for 
some of the procedures. They have a more 
general value than their inclusion in a game 
program might suggest. Used with a simple 
Repeat . . . While loop to input lines of text 
they couatd form the basis of a very simple line 
oriented text editor. 

Somewhere in the main body of ihe program 
you must dimension the array that will be used 
to hold the lines of text, each line will contain 
one message: 

5!ZE% - S: REM SlZE% can be altered to set 
the maximum number Of lines or messages 
DIM BLE£PSISIZE%I 

Note in program I that ihe length of each string 
has been set to 30 characters, tn a mote general 
text editing program that value could be 
changed lo a variable such as 

LINE LENGTH % 
which could be set a I the start of ihe program 

Program 2 assumes that the screen is in a 



Figure 1. The bleep message Mack before and after removal of a massage. 

1 New pattern waning in Casualty TOP OF STACK 

2 Please phone your bank manager 

3 Mrs WHIu»ms blood pressure dropping 

4 Peter Benthams relatives are waiting 
5 

6 BOTTOM OF STACK 

If the doctor chooses to deal with the third message the Downstack procedure will be used to 

remove it from the stack and dove up the remaining messages: 

1 New pattern waning in Casualty TOP Of STACK 

2 Please 'phone your bank manager 

3 Peter Bentharm relatives are wailing 
4 

6 

6 BOTTOM OF STACK 



Program 5. 



t i* 



•• t 



Itful 



rHTH I ■<■ , I I « ■ 

«lfc#faa, p'i-« »r till iti MMf lul> 
*» M KB «*>ri at art 



i«r -.ui. 



■ I I 



■*■!* > ■ 
HH1I 

• • ■ ■-■• ■ 

i iM:wl 
1 1 m cam 1 1 . t, t 



suitable state lo display the messages and that 
there are no odd text windows in force, 

Program 3 takes a parameter into the 
procedure from ihe main body oj ihe program 
to set the position ai which the stack should be 
split to insert a new message. AH the messages 
above the designated point (X%) are moved up 
by transferring 

BLEEP*! SIZE % U TO BLE£P*<SIZE%) 
and so on all the way back down to JMk The 
string lil I-lPSkX"'.)) is then filled with spaces 
and is ready to receive the new message when 
the program returns from the procedure 

To close-up the message slack after a menage 
has been removed fro action by I be doaor you 
will need to move any remaining messages 
down by one place, eliminating rhc chosen 
entry — see program 4. 

You can write a loop 

1 "singa few more lines of Basic you can write 
a loop thai will continue to nfe fat text until you 
type 'quit ' when you will be returned to a Main 
Command Level — see program 5. 

N^med procedures and the Repeal . VX hue 
construct ion are two of the better features of 
RHC Basic. Their use is extensively covered, 
among other ihings, in Structured Programming 
I BBC BASIC, wri! ten by Roy Aihenon 
and published by Ellis Horwood. It costs £6.50 
arid must be among the best value m computer 
books on the market ai the moment. 

The book is the perfect Christmas present for 
teenagers who are using computers ai school — 
it is published jointly by Heine mann 
Coropuitti in Euiucaucn — and for anyone who 
wants to learn how to write good, effective 
programs. ■ 



VOLIH COMPUTER MCEMMH 1983 203 




DRAGON 0004/0 
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Helps children to count and 
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70UHCHIMCHML 
NOLLITQI 



204 YCHJfl COMPUTER. DECEMBEfl 1983 



RESPONSE FRAME 



Do you have a problem? Your manual is 
incomprehensible or you just cannot get the 
hang of that programming trick you tried — 
whatever it is, Tim Hartneil wilt do his best to 
answer your queries. Please include only one 
question per letter and mark them "Response 
Frame". 

SAVING ARRAYS 



■ 1 own a ZX Spectrum and 
have written ■ fairly large 
program for book -keep inn. Each 
time the account* arc upd»ird, 
the date is Saved onto cassette 
tiling the Spectrum'* facility for 
Saving array*. Unfortunately, 
there are IS it pa rate array*, 
which meant that the Enter key 
ha* to be nil each time, I wonder 
if there is m way around this, 
apart from the obvious one of 
Saving the entire program on 
each occuciofi? 

D A C Patrick. 

The SIMrtliST solution, and one 
which may not be satisfactory, 
would be 10 Save your data in one 
enormous string or numeric array, 
using pan* of ihii giant array to take 
the pxsct of the 15 smaller arrays you 
arc wing at the moment 

JOYSTICKS 

■ 1 have jut i bought a caiaelte 
recorder for my Vic-20 and h**e 
been looking for tome good 
quality game*. Bui moat of the 
gamei I have come across need a 
Joystick. IT! buy a joystick, will it 
be compatible with any g*me 
which need* a )oyttlck? 

Skamther Jifhai, 
SkftityAtll, Derby. 
Any fOVJTiCK advertised for the 
Vk-20 will work with any Vic-20 
program demanding a joystick The 
loystick provided by Gommodore lot 
the Vic- 20, although n looks cheap, 
is reliable and robust. 1 have been 
using mine for over two years, and 
although the iheath brake off ic vera I 
monthi ago, M mil function* 
perfectly well You should have a 
good look at thii unu before 
deciding thai you need to buy a more 
expensive one. 

JUST A MINUTE 

■ 1 am writing a program for a 
ZX-OI to help me with my job. t 
need to work qui the efficiency of 
machine*, to find any time lost. 
The problem it that I cannot 
figure out how to get the 
computer to work out the 
running lime, say from ft. 15 to 
1.511, which i* five houra 33 
minute*. 1 need the minute* in 
decimal, which makes the time 
5*58. If 1 put the time in, in 
decimal, the program work* 
perfectly, i.e., 13.83-8.25 = 5.58. 1 
would like to b« able to enter the 
time at ordinary lime in thai 
other people in ihe factory could 
uae the program. Your help 
would be appreciated. 

Jim Brush, 
BW/ai; 



TKS*E IS OFTEN a problem in 
program* when non-i!andard unit* 
are being used. You mux linn get 
everything into a similar form to 
compare value*. If the second 
decimal plate it not vital, you could 
ask foe the input in three stapes, 
"enter hour*", "it this am or pm?", 
then "enlet minute*" This would 
be needed iwke, for ihe Marling time 
and ihc ending time. The response 
to the second question — u thii am 
ot prrt? — could be used 10 add 12 
where needed io the hour* figure 
You can change the minute* figure 
into a decimal in I he program as 
follows; 

PRINT "ENTER MINUTES' 

INPUT MINI 

LETMIN- (INTdOO'MIN 6u)l 100 

Once rbe two figure* have been 
compared, you can change your 
decimal "nunules" into ordinary 
one* by multiplying the decimal 
figure — such t» 0.53 — by 60, This 
should work closely enough for your 
needs. 

BBC PROCESSOR 

■ Can you icll me If ii I* 
possible to use /.-ttO machine 
code with the second processor 
attachment for the BBC Micro? 
Your answer will affect by choice 
of computer. 

Mrudamg Kaiana, 
Mam* Park, 
London, 
Tin srCONP PROCCSSO* for the BBC 
can be cither o*Q2 or Z-80. TfctJ arc 
not available ai present, but are 
expected around March i°o4 

COM/^fTlBILITY 

■ I have recently purchased a 
Vic-20 colour computer with a 
IfiK RAM expansion. I would 
like to know whether hardware 
for the Pet computer lu 
compatible with the Vk-20. For 
instance, can the Pet printer run 
on the Vic-20 » 

Tim Adamt, 

Btdtot, QxferJikirt. 

No this is because the Pel 
peripherals communicate via the 
IEEE 48B interface whereat the 
Vk-20 — and the Commodore 64 — 
use a proprietary serial bus. 

ZX-81 IN USA 

■ U it possible to modify my 
home-built ZX*B1 to operate 
with a TV set In the U.S. A? 1 
realise thai I will have in use a 
power supply suitable for the 
American mains voltage, ban 
will I have to replace the I \ 

modulator?' 

R H Pond, 
Canumnie 



It is not a simple matter to make the 
conversion you describe, because of 
the ZX-oTt ULA. And there tt little 
point in making such a change. 1 
have seen the TS-1000 - a ZX-81 
with 2K onboard — on tale tr. the 
U-SA. for •round £12 (?) so the 
umpleit thing to do would he to buy 
one of ihcse when you get there. 

RIBBON HELP 

■ Our computer club ha* 
recently been given a Naaeom 
Micro Imp printer. However, aa 
Netcom have gone Out of 
business, we have been unable to 
get bold of ■ ribbon , Could you 
or one of the readers please 
help? 

Ian Amimvn, 

T*r Utttvtmt Micro C/*A 

J5 Surrey Cfoif. 

i ,»»*\. 

Nortkamti NSt? 21G. 

I HAvih im 1 1 i>n> your address in 

full so that anyone who can help can 

gel in touch with you directly. 



CONVERSION 

■ About a year ago I purchased 
a ZX-81 with ttK RAM. which I 

ritrndrd with ihc Quickiilva 

sound board. Since then, J have 
told my AX- ft I and bought a 4SK 
Spectrum. I have seen tome 
advertisements for connectors to 
convert ZX-81 bard ware la the 
Spectrum. Could you advise me 
whether such connectors would 
be useful? The main chip on the 
sound board is the AY- 3 -8910 
which I have seen advertised for 
Spectrum sound hoard*. This 

v purred me to think that my 
three channel sound is not 
redundant. Is this true? 

R VF&xh, 
Staton Siutit, 
Tynr and UPtar. 
The QS hh.ni> board it probably 
mapped to the ZX-81 memory map 
above the ROM but before the 
RAM. This area is occupied by the 
second hall of ihe 16K ROM on the 
Spectrum. Because of this, Spectrum 
sound boards ate mapped to the DO 
pons raiher than the memory map. 
The aniwer then, I'm afraid, is no. 

JOYSTICK CONTROL 

■ I read Your Computer every 
month and I think It is a great 
help to my programming, I 
would like to aak one small 
favour, I have an uneapanded 
Vic-20 and a joy stick, which I 
want to uat la a program I am 
writing. However, I do noi know 
how to get the Vic-20 lo 
understand that 1 want to uae ihe 
joystick. Could you please tell 
me what command i in use? Will 
these change If 1 expand my Vic 
20? 

5 A Vattk, 
Bkichity, 
Milwn Keynes. 
The lOVTTKR TO control joysticks is 
not very long but It its aj little tricky 
to use. You initialise tr aa follows: 
FOB Z*0 TO2:FO«J »0TO2HEADJS 



>J.2.)NEXTJ.Z 

0ATA-Z3. 22. 21.-1.0.1.21.22 23 
To actually read the joystick, you 
include the following lines: 
POK EDO . 1 2 7 S3 - 3 1 (PEE K r Pfl I AMD 
1281*01 POKEDD255 
P-PElKlPA* Si - (tPAND8l=0i 
S2-HPAN0iei"0i S0 = irPAND*i 
= 01 

fR- UPA*D32l-0lX-S2 + S3;Y- 
S0*S1 

This allows you ic- move an object 
around in any direction — including 
diagonally. 1 suggest you gel hold of 
the l'w-20 ProframiHtrt' Referent* 
Guide — from which the above 
routine was adapted — for a full 
pr o gr am showing the routine in 
action, and an explanation of bow it 
work*. The routine will work on toy 
Size Vic-20. A machine-code routine 
to read joyMtcks is given in the book 
Men Garnet fiw V«ir Vk-20 by 
Andrew Nelson, published by Virgin 
Books, 

LEARNING (VIC 

■ I am going i a purchase ■ ZX 
Spectrum and, now that I have 
learned Basic, I think my next 
step should he to learn machine 
code. 1 do not know any of this 
language. What should I buy to 
help me leam iir Tim Thjkur, 

Ai-Ain, 
Untttd Arao Emirate*. 
The 8ASU9T WAY io learn Spectrum 
machine code is with the help of 
books, psui a fnend who already 
knows how io program in it. If you 
do noi have any friends who can 
program in machine code, you could 
team up with one who also wants to 
learn tr, share out the coat of the 
books, then help each other, tt is not 
pariicuiirly eaty io learn but 
machine-code is ills can be acquired 
with patience. If you look through 
the advertisements in this ittue of 
Yt'ur Gimpuitr you will see I here are 
six or seven books available io help 
you with ihis 

UNFAIR DEAL 

■ I recently ordered an add-on 
product for my Spectrum. It 
took seven week* to arrive rather 
than the three mentioned in the 
advert item e nl. While the demo- 
lape loaded alright, none of my 
own programs did, neither did a 
copy of the Spectrum program I 
made. On telephoning the 
company, 1 waa told that my 
cassette recorder did not give 
enough volume, and 1 needed io 
buy an Atari cassette deck. The 
sales literature for the matter 
unit claims: "The unit also 
enhance* the saving signal, so 
thai cheaper casseltc recorders 
.An he u»cd." I feel they are 
contravening the Trade 
Descriptions Act. I also feel that 
{50 for an Alarl cassette 
recorder to make a 134 add-on 
work Is decisive / J Join, 

Hartley, Plymouth. 
1 «.hh am> rttiSK you have been 
treated badly Send the unH hack 
and demand a full refund. Such 
companies do not deserve ytiui 
money, or anvone else's 



VOUR COMPUTER, DECEMBER 19S3 205 



What programs 

will you be watching 

this Christmas? 

^C Don 7 miss . . 



Prasmmin inn 



* . ,., r r 

the BBC. Micro 

Edited by Peter Williams 

"an excellent review , . . way 
ahead of its rivals" 

BBC Micro User 

Quite simply, the best book on 
programming and using me BBC 
Micro- Practical programming 
points. BBC BASIC, graphics, 
machine code, hex. assembly 
language, interfacing, file handling 
are all covered in this guide. 

Softcover £6.95 



M Exploiting 
Mil HASH 

A P Stephenson and 
D J Stephenson 

SBC BASIC offers you many 
special features, make sure yourre 
taking full advantage of them with 
this practical book, ft takes you from 
fundamentals to the more 
sophisticated aspects of B8C 
BASIC, 

Softcover £6,95approx 



M 6502 Machine 
( ode for Beginners 

A P Stephenson 

If you've mastered BASIC then 
progress on to machine code - a 
more efficient way of programming, 
The book shows you how to 
program in machine code and is 
ideal for alt users of the BBC Micro, 
Acorn Attorn, Ok>1 , Pet, Apple etc. 

Softcover £6.95 




-^t Newnes Programming Hooks 

A great series of programming books by experienced authors specially 
written for micro users, They contain sample programs and will soon have 
you extending your knowledge of programming and the capabilities of your 
micro. 

Programming f. anpttapes fOH Tit A\ for Micros 

for Micros 

Garry Marshall £6,50 

HASH for Micros 

JeftMaynarci £6,50 

COBOL for Micros 

Ntge! Stang Zl 95 

TOSH 7'// for Micros 

Steve Oakey £6.50 



J(» I lew them at your nearest bookseller 







Garry Marshall £5.95 

LISP for Micros 
Steve Oakey £6.95 appro* 

Pascal for Micros 

Mike James £6,50 



JMewnes Technical Books »»»* 



Green. Sevenoaks. Kent TN15 SPH 



208 VQUH COMPUTER, DECEMBER 1983 



LYNX SOFTWARE. 
NOWAS CLOSE AS THE POST 

You'll find Lynx software in more stores than ever before. And now it's 
available from the end of your street. Because you can order your favourite games 
by post direct from Camsoft. These are the first of our titles. There are lots more 
on the way. Fill in the coupon below and have fun by return. 



TITLE 


RRP 


TITLE 


RRP 


1. Numerons 


£9.90 


12. Protector 


£6.95 


2. Dungeon Adventure 


£9.90 


13. Lynx Invaders 


£9.90 


3, Adventure Quest 


£9.90 


14. Power Blaster 


£9.90 


4. Colossal Adventure £9.90 


15. Hangman 


£7.95 


5. Sultan's Maze 


£7.95 


16. Connect 4 


£4.95 


6. Monster Mine 


£7.95 


17. 3D Monster Craze 


£9.90 


7, Moonfali 


£7.95 


18. Gobble de Spook 


£9.90 


8. Golf 


£7.95 


19, Spanner Man 


£9.90 


9. Gaines Pack HI 


£7.95 


20. Music Master 


£7.95 


10. Games Pack IV 


£7.95 


21. Mined Out 


£7.95 


11. Racer 


£695 


22. Dam Buster 


£6.95 



ALL PRICES INCLUDE POSTAGE* PACKING AND APPLY UNTIL 3 In MARCH L9M 




i 








1 



2 3 



5 



6 



8 9 10 11 12 13 



14 



IS 16 



17 



18 



19 



I I enclose my cheque/postal order for £ . 



to Camputers PLC or debit my Bardaycard No. 




made payable 



PLEASE ALLOW 31 
DAYS FOR DELIVERY 



20 



»iL ; TICK TITLE 

£l " NUMBERS REQUIRED 



Send to: 

Camputers PLC, 33 A Bridge St., 

Cambridge CB2 1UW. 



'SOFT 



LYNX 




n 



'."^yB 




wMJjN 






,x 






v'*j 


- / m^0k~ 




I7i '' ft 
i', | , it' i 


rii 


M 


1^ 


Bij 'Mf ■[ 


Mi 


to 



^JW 





I 



/I 






L 



/. 






'Such a choice Tim, and so tolerably priced!" 



Hhr lAr **■•■» 



££«£&£ 



Micro and home computer systems, 
games and educational soli ware, 
printers, monnors, peripherals and 
much, much, more ... 



FTlicraSt 



THE HOME COMPUTER PEOPLE 



The Aylesbury Computer Centre Tel: (0296) 5124 
The Dewentry Compter Centre Tel; (Q3272> 76068 

208 YOUfi COMPUTER DECEMBER 1983 



The 6*th Computer Centre Tel; (0225) 334659 
The Newbury Computer Centre Tel: (0635) 41929 




SOFTWARE FILL 



Software File gives you the opportunity to have your programs, 
ideas and discoveries published. We will accept contributions for 
any home computer provided they are submitted to Your Computer 
exclusively. Please double-check your programs and specify the 
memory they require before sending them, preferably on cassette. 
We pay between £6 and €36 for contributions published. 

Bricks 



Graham P&aree, 
Harrogate 
North Yorkshire. 
This PROGRAM wui iusi lit inw a I6K 
Spectrum and works on ihc 4SK Spectrum as 
well The obiecl ol the game is to knock all tht 
bncks out of a wall ai the top while i Tying 10 
protect a row of bricks at the bottom. A bonus 
store of 100 ii added alter each 1,000 ICWed, 
The game is over after all the bottom row of 
brick* have been knocked out. 1 1 all the top 
bricks arc knocked out they arc then replaced, 
leaving the bottom row as it is 10 points are 
awarded for each brick at the lop but no score 
i* given for a brick on the bottom which is 
knocked out. 

On running the game there will be a long 
pause while the machine code is Poked and the 
message 

PLEASE WAIT A MOMENT 
will appear, followed by a prompt 
THIS IS WHERE VOU ENTER YOUR SKILL 

LEVEL 
Level I is the easiest and level 4 the hardest. 
Only integers are accepted. To move the bat: 
1 - Slow ball speed left 
5 Slow right 

1 *nd 2 together - fast - two times the hall 
speed - Left, 
4 and S logether Fast right 



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iv** '!»il'i aii^ai <iH<i,iMB 1MB •Wlt'iali 
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fm fUBH ii sbibh *i ri.o,**,*! *,ih rxsati u'saa 

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rvsv »«»■ 1 ■»•¥* -iM-i,ii*((a ihbl -*7S»-i aW 

■V* -l<i-i*<»Oa IWB. *IMlU-i-4s)>i IB Bit Wl TBI » 
•a -UUI-.fSaS MB. -MP1J-. CSIBI at IV.IH'Bll *S 

• -, tnso.a.ii t-ai *b 'hobmwi « -ttsii-j v 

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VBL -isoiB-i parar bt 11. .,-,..11 ■■»« [>a mm* «LUM - 
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**i" laBur -«r ill Llvts ii-in 11a a, ir ,it m. < 
OB < CBS a*-*» SB FflDT a» -\': TMBS Mtf o. • . IOi BB to i 

• I* 

Bis* iff a-wB ua 1 

S*J»<H B-T »i FT7JT1 IBM, 'IIKBJ'.B. *ISS »SL -JS03*-,a 

■*»■ ami 1 rBtsn •> s.ai-rs«sa bbbtt H r«.*»-i bbu 
Salt fas ■ W bl -r»l»* ni Mb. tasn>'« MSB a.MB. -SB- 

■**_§ 

BBSS BBS* BBJ. -SBBTB-.haH ■*- 1 BBS* Mt "lia !*-,*». ■• 

'1 "W wsj. 'torso-, 1 1 mom v* -ijTat-.ii m« w*. -i 

MST-.O" BISDJ MB. "toTM-.Ol FfSB SSA -I77BB-^iai BBSF 
Ma. 'XZI9a-,lA 1st ihb 



1 REM LABYR I NTH-TON V lWO*#. 

2 REM JULY 1983^YaUR COMPUTER 

3 REM DRAQOW 32Ka64K OR 

4 REM TANDY COLOR COMPUTER 

5 REM 16K AND EXTENDED BASIC 

6 REM REMOVE THIS POKE IF YOUR 

7 REM MACHINE CANNOT HANDLE IT 

8 POKEfcMFFD7»0 

9 PCLEARBiDIM X (5) ,N*<4> I PMODE4 , 1 iPCLSt PMODE4 ,5t PCLSl 6 
0T0 38 

10 At-INKEY»i IF 
"M 
11 
12 
13 



1" AND A*<> - 2* 
SOUND 130,1 



A*-"" OR (A*<> 
AND A#<>" " ) THEN lO ELSE 
IF A*-"! 1 * THEN D-D-l 
ft*j-r"2" THEN D-0+1 
D-0 THEN D-4 ELSE IF D«3 THEN D-l 



AND A* > 



14 
IS 
16 
17 

18 
19 



IF 

IF 
IF 
IF 



A*»" " AND F-O THEN PP*PP+M(D> 

A*-"M H THEN T-T+lsGOTO 19 
F-OiPCLS*Dl-X<D> »D2-XCD-1> iD3-K (D*l> iGOSUB 22 
PC0PV 5 TO UPCOPY 6 TO 2iPCOPY 7 TO 3* PC0PY 8 TO 4 
POKE 1023+PP.LL.GOTO 10 

SCREENO f O.PRINT«44B, M V0U ARE FACING "|N*(D> | tPOKE 1 
023+PP , 2 1 

20 PR[NT#480a "TIME *1 INT <TIMER/50H-T»3| '■SECONDS"! 

21 IF INKEY*- - " THEN 21 ELSE PMODE4, 1 i SCREEN1 , 1 iPMODE4 
,5tG0T0 lei 

22 A47-0«*(PEEK{1023+PP+Dl)-64) i IF A*-" " THEN 23 ELSE 
IF A»«"£" THEN 55 ELSE F-li RETURN 

23 IF CHR*CPEEKU023+PF+Dl+D2>-64>«"*" THEN LINE<0,0>- 
(49,37) .PS£TiLINE-(49,134> *PSETiLINE- CO, 191 > ,P8ET ELSE 

LINE(0.37»-(49 f 154> t PSET f B 

24 IF CHRS(PEEK( 1023+PP+Dl+D3^-64»- M * ,, THEN LINE<255,1 

tcommuett on page 21 J t 



Labyrinth 

Tony Brown, 

Presion, 

Lancsshite. 



zmm3 



Labyrinth win run on a Dtngon 13 or m 
j nd the Tandy Colour Computer with 
extended Basic and at least luK. Instructions 
are in the program. 1-evd I plays normally but 
if level 2 Is chosen it becomes impossible m 
retrace your steps because the locations arc 
filled *s you leave ihem The only rcturd n!" 
the i -orcd an ibc tew screen and th^ is 

al*o used to show the map. To return from rhe 
map in (he high-iew»!uiion display press any 
Key Movement instructions arc included in 
the program. Save program using CSave 
before running. 



Program wfffJ. 

I Movement and keytXHJfCl foutm«S 

Map routine 

This section decided where to put 

each Was* on the high itHotutian 

screen according to the pian on the 

text screen. 

Instructions. 

Set up variables 
Remove ihe Poke in line H if your 
computer cannot bindle double \pccd. 



h>?1 

n 3? 



38 51 



VOUR COMPUTER, D€C£MBER 1&63 203 




Ootm*"-i 



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Ftsiage charged an c, T,rjt order i A minimum of G2) 

1 Program 50O.2 Programs 75a3 or more no postage 




SOFTWARE FILE. 



'continued front papa 209} 

91>-t204.,lS4>,PBETtLINE-42O6,37) , PSET (LINE- (28*1. Ol ,PSE 
T ELSE LINE (233.37*- (206, 15*1 .PSET, B 

33 A*-Ct«f <f>eeK(H>23*PP*2*0li-A4H IF A*-- ■ THEN 26 EL 
SE IF A*-"*" THEN L INE <1"? ,371 - i 20A . 1 34 I ,h^BE T ,Bi Rt TURN 
ELSt LrNEI49,J7I-<20A,l3*^,PSE , r,BFlRETUflN 

26 tF eHR*(PE£K:i:i023+PP+2«Dl+D7)-6*l-"*" THEN LtNEU?. 
134) (B8,1Z5) ,PSETiL l« (B8.66) t P8ETlL INE- (49,37* ,PSET 

ELSE LlNE(**,Afci~ (88,175) ,P8ET,B 

27 IF CHR# (PEEK <1023»PF+2«D1*D3I -&*)-"•" THEN L I NE < 2C*b 
,134? -(167,123) ,P8ETtLINE-< 167,661 .PSET tLINE- <Z06,J7t , 
PSET ELSE LINE C206.66>-( 167, 1231 .PSET. 8 

29 P»-CHRS <PECK(I023*PP»3»D1)~64M IF *♦-" * THEN 2V EL 
BE IF A*-"»- THEN L INE <B8,fr6> - c 167, 1231 , PSET, Pi RETURN 
ELSE LINE IS8, 6AJ-( 167. t23>, PSET, BFiRETURN 

29 IF CHI»*(PEEK*1023tPP*3«Dl+D2l-64t-"*- THEN LINE (88, 
123 J -<109, li>9» ,PSETiL1NE- ( 109,B2) ,PSET ■ LINE- IBS. i£) , PS 
ET ELSE L INE <B8,B?>-< 109, 109> .PSET, 8 

30 IF CHR*< PEEK (1 023*3*01 *D3+PP)-i.4(-"*"' THEN LINE (167 
, 123) - (1*6,1091 ,P8ETlLlNE-<146,S2l ,PSET i LINE- 4 167 ,66) , 
PSET ELSE L INE U67,B2>- (1*6,1 Cm ,PSEI,8 

31 A*-CHR*<PEEK<I023+PP**»DI ) -&«>i IF A*-" ■ THEN 32 EL 
SE IF A*-"*" THEN L INE < 109,82) -( 1*6, I09) , PSET ,Bi RETURN 

ELSE L INE < 109, B2)-< 146, t0"») , PSET, BFi RETURN 

32 IF CH8t (PEEK ( lO23*PP»4»0l +D21 -6*1 ''■»" THEN LINE (10? 
. 109J (117,103? ,PSETtLIN£-Ui7,S6>,P8ETiLINE-(IOV,BZJ , 

PSET ELSE LINE(10*,Bet-m7,l03t t PSET, 8 

33 IF CH8»(PEEK(lO23*PP*4»0l*D3l-A4)--»- THEN LINE i 146 
.109>-(l3e,103> t PBETiL[NE-U39 1 88l ,PBET tLINE- 4 1*6,821 , 
PSET ELSE I INf ( l4i,B8» -(138, 103) ,PSET,B 

34 P*-CHR»fPE£KCl023+PP+5-Dll-6*>tIF At*- " THEN 33 EL 
SE IF «-"■■ THEN LINE ( I 1 7,BB1 -i I 38, it>3> , PSET, 8 t RETURN 

ELSE L INE( 117, SB) -4138, 103) ,PSET,BFi RETURN 
33 IF CHR*<PEEK(10Z3+PP+3*DlH>2l-64>--«" THEN LINEUI7 
, lOS)-( 123,99) ,PSETiLlNE-( 123,92) , PSET iL INE- ( 1 17,88) ,P 
5ET ELSE LtNEfl 17 ,92) -( 1 23,99) ,PSET,B 

36 IF CHR*<PEEk(i023*PP+S»Dl*D3)-6*)-'--- THEN LINEU3B 
, 103) -(132,9^) , PSET i LINE- (132, 92) , PSET i L INE- ( 138, B8) ,P 
SET ELSE LINE ( 138,921 -( 132,991 , PSET, ft 



37 IF CHR*(PEEK(l023*PPt6»Dl)-64)-- , C" THEM LINE (123,92 
)-1l32,99) ,PSET,BFlRE TURN ELBE LINE ( 123,92) -< 132, 99> »P 
SET, BlRE TURN 

3B CLSjPRINTB43,"LflftYfttNTH"|iPinNTB73,* -| 

39 PRINTB139.-TONV BROUN 1 - 1 * PR1 NT81 71 , ■ — "i 

♦O PRINTH92," THE OBJECT OF THE GA»* (S TO ESCAPE F 

ROM T« LABYRINTH AS OJECKLV AS IS POS3 t BLE - US 1 NG t 

HE NAP ADDS TD YOUR TIME. THE EXIT IS WHITE 

ALL OTXft HALLS ARE BLACK." 

41 PR 1NTB451, -PRESS ANY kEV TO CONT 1 HUE - i ■ EXEC 41194 

42 CLSlPRIWTB43,*LABVRINTH*|tPRINT•73, ,, *t 

43 PRINTBI33,-SPACE BAR— FORWARD- 1 

44 PRlMTB20a,"H — HAP" i 
43 PR1NT626H,"! LEFT~| 

46 PR1MTB332,"2 — RIGHT "| 

47 IF L-O THEN PR1 NT 8*36, "LEVEL < 1 OR 2f;UHFUT Ll IF 
L<1 OR L>2 OR LOINT(L) THEN L-OtBOTO 47 

48 PR1 NTB4S3 , "pr ■*> - +CHRI < 1 28 1 * -#i»y " +CHR* ( 1 28» + - k9Y~ +C 
HR* 1 128) *"to-*CHR* (1281 **lt*-t"| 

*9 IF L-l THEN LL-9A ELBE U.-I06 

50 SCREE NO, I 

51 IF INKEY*-"- THEN 31 ELSE CLS 

32 PRINT "»•••*■•#•*•••••£»••»**•■•#•**•*•* a 

• • •••• • •••* •« • •»« • •••• *• •* ••*••• • »•• 

■•■ •*#* • • •*••* ***** »*• *** *•»*•*•** • 

• ••• • ••• • . • - • . *•••• ■ ***** **** •*• • • 

• * •• ••"! 

33 PRINT "• *»* •■» • *• * • #*•• ***** *••« • ** ■ .. 

• • »• ••• • ••* • •*,* * • *• ■ **• *• ■*> 



34 PP-383*HND<30)il>-3iX<0)— liHD- J2i K (2) -1 * X (3) -32i 
*(4>--||»(3)»-32tN*< U--NORTH !Nt(2)--EAST "|N*C3>«-9Q 
UTM-|N#t*J--WEST "i T-Oi TIMER-OtGOTO 19 

S3 CLS i PR I NT -HELL DONE. YOU HAVE ESCAPED FROM T« HAZE 
IN"f INT (TINER/SO) «T#S| -SECONDS-t iPTJKEbHEFD6,0 

36 PR 1HTB433, "ANOTHER GAHE(V OR Ml " t 

37 A*-(NKEY*iIF A«-"Y" THEN RUN ELSE IF A»< >"N" THEN 3 
7 ELSE STOP) END 



Golf 



Richard Wiili&ms, 

Burscuugh, 

Lancashire. 



JJ-3J 



THIS GOLF TOCXiltAJVl for thr I6KZX-8) taJtes 
you round an 1 8 hole course and generates a 



different layout for each hole- Before nuking 
your itroke you must choose (he direction and 
hitimfc Mfcn^h. Direction is indicated by 
inputting a number from 1 to 12, where the 
directions correspond to the positions of the 
numbers on a clodcface, Thu* 6 indicates 
South and 9 West. 

The program contains a short machine-code 
routine, so your first step js create a Rem 



statement followed by 13 X*. Now use 
program I to Poke in the following numbers: 
6, 176, 62, S, 315, 2 1% 215, 16,0,46,43,0, 
201 . Press Newline after each entry. 

You can now emer the rest of the program 
deleting lines 10 to 40 of program I but 
retaining tine 1 . During play press New I me to 
proceed — at the start of the game and at the 
stan of each new hole. 



r 



1 PEn •:•**» 




; FAST 




3 S0T0 BOC 




LET _i_5" - S 




IS POP I».' - - 




SO PftJWT AT 


-_ 


♦cur A* 




38 NE*T ; 




*e cjr r ur*H 




.^^ *:■? r*; rfl i 




*?£ ^-r po*pi e 




310 LET C0UPSE PPP-^ 




SM l^ET BFlL2*eEE> i»396*ifle* 


w 


:*■■ l&2i-*l 




530 LE"" HOLE** 




S LET SPEEN»3Er 




S*8 J.CT BUNKER«3fM 




-*- LTT +efES-iE3 




^S«! i.E^ -Pi-E«*S0C 




SflO LET R0LH3H«M3 




565 LET HUP*« 




Z~V J-ffT '■•- 




-^,? ^fT RMIaJMT -3 + **S ■ 




682 PflS^ 




6ZCi LE 7 " Jrt0T5«fi» 




SiO LET YAftC9*lS*XHT Ii?» F»R« 


-*. 


*PHC'i 1 




S«« LET 3.;»3i PPC-S 




^*? ^=^ H0i.E*NOLE+J 




638 LET :ii| 




s*a cj.3 




IBM RAND »*U3P 1651-i 




a ^0P I»J TO SB 




10*S LET L»5*S»PNP 




iC5P PRINT a T _ I 




jata »op j*l to n»s*RNt> 




iCS PPINT TAB J -■' 




103^ NEXT - 




isie ■■£-" : 




lilB LET f»* 




1138 LET rii] 




:i*« LET Xftaf 




iiM LET -1«£|B 




llfiO vET Al«"B' 




ii to fop :■; To 2 




iiaa let -i-3»s+m*hnC' 




1190 GOAL'S 10 




i^oo ti£'- r 




1203 LET <^.^i 




' ^ET i-O «£ 




1213 LET -.1*13 





• : 
i*5*l 






1220 4_ET y 1.25 

." LET Ai« ... 
.iii? ^f^ »»..? 
1250 GOM'B 10 
1255 LET d| : l 
1*60 LET F..0F 
12AS SD£UB 10 
12S0 LET KBaXI 
1*90 L ET ,0«^k*. 
1308 POP I»*0 "' -v*.. 
. «'0-»- 

1J40 PffjNT AT 

e * a ♦ « 

: 
13*0 NEXT r 

1308 LET H0LE'-«INT I3*18«n 
1380 PRINT AT HOUEK-a »' 
14.00 FOP 1*1 TV 5 
1*10 PRINT TAB £~ 
14,20 NfHT I 

14-30 PPINT AT 8,13; "HOLC ---= P 
T HOLE' ,29 G 
14-4.0 LET BA^LKBlB 

i*s0 ^rr BALLV-a 

1470 PPINT AT p ? SRC-9. 

■PPO'-PAP 
14. SO 3L0U 
300 PRINT HT 18,2, " 



-■iT* Tfl 



• 



-0,2. 



28 

Iff 60 IP Bfll- -NEU L r 0*L- 
16-0 J" PflL_ 31 TH«JN LET ji, • 

16-5 ..ET SH n0rt*X 

16BB PRINT .= T il OUT ;.* 
3-PENALTr 3H0T 

lEBi pop i.i -: ie 

1602 NE'- : 

1?8B LET o»*:--» *EE^ 1^* SC — 

X+7»)*53+lNT ;k *,3 *f>FILE 

TptE-. :-:^-"' *1P0 
thch i0 T ^ £E3 
TrtEH iu T ? H0UBM 

r«en 80TO uAke 

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T tEs JC T ? ^~ES; 
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TPENSTf 0-100 » -" 
1550 Inp-jt ; 

CNi - o , p. a 

J 100 TNEN LET S>100 

1S70 LET j»j. 

1880 IP BUP THEN LET i'B 4 

1S98 PRINT AT «*_ L . r^__ ', 

168B LET »I*DTS»5N0TS*1 

1610 LET ByF^o 

1620 LET iPLL^-BPLL'-itCOa *4S 

1630 LET BALLY «#fll_LY*S#SIN a'-^ 

163S IF UBi i.aPvLf-lB' *10 
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210? IP NO"" PflP THEN PBINT 

PAP *EEP CC1H* 

2110 I p Pfl««-| TnCH PRINT 

2112 I" PAP — 2 THEN PPINT 
A SPEPT BIS EPSLC 
RT STUP* 

ill* IF PAPa-3 T H E N PRXHT AN PL 
BflTPCf' --■ 3 THIS IS INCPECIB 

£i;£ IF PAP^O THEN PRINT " 
AP C'JEH PfllR" 

2110 tfT COURSE PPP«C0UP5E PAP-P 
PR 

£120 PCIw^ A- 1£.B OVER"^ 
£123 IF COURSE pak THEN SOTO 


2125 PRINT JH PAP 
212T 00TO il*8 

2130 PRINT AB5 INT COURSE P«s 
£132 IF COURSE RPP *NEN PRINT 
'wNC-EP PAP'" 

fcanttnved on next page) 



VOUR COMPUTER, DECEMBER 1 963 211 



SOFTWARE FILE 



Icommu&t from previous p*ge> 


3S30 PRINT AT OAU.".,a«LL « - 
21,22, INT JHOT3 


4000 PAINT AT 21.0 IN 
-PfNflUTV SHOT • 


TmiB 


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siss i" cqukse pec t? rut* ff • 


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JiigP I- ZHre t* T *GN GOTO -1*0 


3SM LCT Oi»CH*»« PCr> ilNT iBflL*. 


tB00 PRINT AT £1,0. "IH 


THE 


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2190 COT" ,*.■ 


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JffM GOije J $00 


4S10 LET £tlOTS«jM0T94l 






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3000 "OP 1-1 TO IB 


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5000 PRINT RT 21.0, 'IN 


TH« 


COL i 


J500 PRINT ST^lJrtiTaiJ g 


3010 PPfMT BT BALL* SflLi. B «T 
BALL*.0A(.Lr '-■" 


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,?S10 ir j-OT»«JKT >3rt 


20 NC'T I 


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0000 P£n 0OLP 







yj^j'j 



Dodgems 

Ofof Mortis, 
Brussels, 
Belgium. 

DOOGGMS h A version for (he Vic-20 o\ the 
well known game in which you control i car 
driving round a four-lane track, One can 
change lanes al four points on the circuit To 
complicate things there is a rival car driving 
in the opposite direction. Its objective b M 
crash mm you It wilt change lanes rarely at 
first, but after 10 screens n wilt change iust 
about whenever necessary. 

The keys are as follows A m i lunge lanes 
leftwards; D to change lanes rightwards; VX' to 
change lanes upwards, and X to change lanes 
downwards. 




Pointing the way 

David flees, 
Weybridge, 
Surrey. 

ONI mm II si v Of the Commodore is that 
the basic machine has no command to plot 
% in any of the computer's many 
resolutions. Even printing needs a liht-rji 
sprinkling of control characters for characters 
to reach every part of the screen 
The following routine amends this in pari. 




The plotting resolution is low — 80* 50 — hui 
the machine code comains an enure command, 
wnh lew inconveniences. 

The first listing Pokes the machine code into 
pan of the -,K RAM Killer at location 49152. 
As the command it self-sufficient, the lusting is 
then no longer needed, and may be Ncwcd. 
Thus, providing nothing else is stored in the 
first 100 bytes of the RAM buffer, none of 
your Basic memory is used. 

The next thing to do is to understand and 

operate the command. To plot, it uses the 

graph k squares in the Commodore character 

i'Xi to be displayed at the same 

All calculations arc carried out in the 

code so using the command is easy. 

To get data in, the routine uses three integer 
variables — X%, Y% and Cft — so no Poking 
is necessary. The only disadvantage is that you 



* poke M.ei&ii'tHiEss.eaici.fftpofcCMe. i*ato iwti 3 > ,cm s> iHsofui 

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■ i aofsc ifo* i -aTo?aaa> >* 



must define these variable* in the correct 
order, and before any others, as in the example 
program. X% and Y% give i he X and Y posi- 
tions of the pixel, starting from the top left- 
hand side of the screen. You need not worry if 
the position lies beyond any of the screen 
edges, as the command automatically ignores 
these points, 

C% is a more versatile command variable 
The first four bits — 0-15 — give the colour to 
be plolted, but bil four — switched on by 
adding In 10 the colour number — gives an 
Exclusive Or feature. This feature draws 



points so that if the place to be plotted at is 
blank a point appears, but if a point already 
exaKI a blank is drawn. Thus, to rub out 8 
point you can simply draw <md l-ORed point 
on top of ii. 

This is especially useful as the variables are 
never changed by the command, so you can 
draw a point and erase it quickly using very 
hiile program space This variable selling 
principle is used in line 430 of the example 
program where, iust by changing Y%* ■ 
column ol points can he drawn at a rate of up 
fconnnued on page 2t$i 



212 VOUft COMPUTER, DECEMBER 1983 



YOU HAVEN'T 
SEEN ANYTHING 
LIKE THIS ON A 
COLOUR MONITOR 
BEFORE. 



An RGB monitor from JVC offering a resolution 
Of 370x470 pixels for less than £150? 

We guarantee you won't see another bargain 
like that in this ur any other micro mag -or in any 
other suppliers showroom. 

For we've managed GO acquire the sole distri- 
bution rights to these superb machines and we aa- 
able to offer them at an unbeatable price. 

There are two models available; medium 
resolution I }70x470 pixels) at £149.95; and high 
resolution (580x470 pixels) at£2-M 95. (Both 
excluding VAT) 

The units have a 14" screen and are suitable 
for the BBC Miert », Lynx, Oric, Apple, and most other 
leading micros. 

They are robustly constructed in a handsome 
cream casing, And come with a full year's guarantee. 

Delivery is gtxxi your monitor should arrive 
by ei Mirier service within ten days ot our receiving 
vour order 

■ 

You can order by filling in the coupon licit >\\ 
and posting to: Opus Supplies Ltd., 1 58Cambcrwell 
Road. London SE5 0EE. Or by telephoning 
01-701 8668 quoting your credit card number. Or, of 
course, you can buy in person at our showroom 
between 93m 6pW Monday Friday, 9 am- 1.30pm 
s.uurdav. 





1 

* « 

t 


COLOUR MONITOR 


w*i 


(EX.VAT) 




IM-r • 





MOtlEl KFUHfMl. 


HOI L ^InJiuni hcviluflao 


IMU 2 KJflh RnplulkHt 


HSOLITION 


n ,-■ (.,,-• 


MDMTOPfewfc 


Ut 


W 


w 


5LTFLY 


JLKW4&* *Q «** 


un i¥i* mtmi 


MIT 


Minimum It *lm 
Mjumuili 11 Ski" 




vweo&ANDtnrrrn 


tiMft. 


lOMHn 


DISPLAY 


2SfeM 




4LOTPTTCH 


OMittm 


D4)miD 


INPUT \TDEO 


BOB AlttiOgLK 

TT1 Input 


«.G* AfljfcftJC 

TTt Input 


SYNC 


t\»iu » r Of Ncgittw 




RJCTB»Ai iXftrntuLS 




On • 4T t * ih h iml 



li 1 t }pu.> Su ppl k-s Ltd , I Sfl CimbcTttt'll Road, Utttk in sr 5 < «■ F 

I'k-ascscndmc MotBumRoohitkMiCokxirMcxiltaKs) 

at £149.95 each (ex wi 



HiphRL-stjIutHMit^jlourMonitoriN* ai 
£229.95 each (c* v.VT). 

t.i»nni"iimi) leadfe) 4i -t<* .00 each 



1 understand c arriag e per mtimti >r w ill cost an extra i 700 

(NH \ Medium Raotutiofl StofttorinchidtogVAT. lead, and 
i arriagc costs £ i^~ 1*> A High Resolution Monitor including 
\ \I lead, and carriage costs £279 $9) 

I CAdoscii cheque lbr£ Or pkase debit my (.rcxlii cant 

accuum wiih (he ami Him of£ My Access Baiciaycard 

l please tick) no. is __ , , , 

Mease stale the make ol y< Kir n imputo: 



\,m\c 



: 



Telephone. 



Opus. 

A.Upu>Mipt>liesLid 



YOUR COMPUTER OCCfM&EFt 19&3 21* 



Until now, finding out about home 
computers was about as simple as 



focusing your right eye here 



and your left eye here. 



CHOKE 



Mina boggjmg iwt it> But now there* Computer Chow?, 
a new monthly magazine thai gives you the facts and advice 
you need 10 choose your first home compurer 

And when youve bought your computer it also hat* 
you get the most out of (L 

The first issue is out now for «3p and includes our 



214 YOUfl COMPUTER. MCEMBCff 1983 



speed Buyers Gude on micros under f 200, a comparison 
of the One, Spectrum and Sort and a report on what One 
owners like and dishke about ther computers and software 
As well as an article on how to leam Basic and reviews 
of al the lates games and software. Plus Jots more to make 
choosing a computer easy, And owning one fun 



/continued from page 2t2f 
to 50 points per second. 

Another speed boost is given by the 
command narnr. The code is stored at byte 
W1S2 and hey and, but by putting a machine 
tuck Goto statement at location 760, the 
computer lakes Jess time to digest the address 
number written in Kasic The quicker point 
command is called ,SVS 7W1 — instead of 

The second program listed — the demon- 
stration routine — shows him to use the 
command and is useful in its own tight. Ii 
contains a short routine which draws a 
70-column bar chart using; the data from line 
1000 onwards, (hough it should be simple to 
adapt it for keyboard-data entry. The program 
is also self-scaling, so at least one column 
always reaches the top of the graph. 

Finally, if you think 1*0x50 is too low a 
resolution to look effective, ] have included a 
graph printout that might be inptmfet 
enough to change your mind. 



SOFTWARE FILE. 



*Xi)5 



Mower 

Shingo Sugiora, 

Putney. 

London. 

TUB SAME was originally written for a BBC 
model H — April I ¥81, Your dmfiunrr. Now I 
have convened n to run on the Otk IHK. The 
original game bad background music con- 
tmuously ringing during the game but I am 
afraid I had to leave this feature out of the 
Li>n vers ion. 

Having failed all your O levels, you could 
only get a )ob as a lawn mower but the garden 
you mow is noi j normal garden. It is littered 
with rocks which will crunch up your mower - 
The garden is enclosed in an electric fence and 
your mower is peculiar in thai if |hc fuel runs 
out it blows up. If you lose three nowei 
are fired. 



9S1 ROW POINT COSE ROUTINE • 

996 F£rWGC-X POS V<-V POS • 

997 REM CX*C0t0UP HHD * 

998 REH* OR/EO* FUMCTJOt * 
9tt fttW** •*•*•••••■••■••••€■ 
1888 FOM-8T0214 

ieio pihds potfE*?t5*+N,« 

1028 HE> -I'l 

1O30 FOMtweroiS 

10*0 ftEHW PV>.£4**00*H H 

1050 ICKTH 

1106 H>E.-«.7t HXtm.t f*0K£7«.l« 

1300 WimeirZ, 177,45-201 - 240, 1 - 9* i98 

1310 DftTfii77.45 , 141. 52, 3. K. 233. 00 

1315 WTftl44,i,24 9Sl«0<9.l77-« 

1328 9RTfl£01"240)l,96 280 i: 

1338 WtTM|4|.5j.>.5*.2i3,58 

13M BATftl44.2.24.9£. 160-171 ~ « 

1540 DftTftHl 54 j. 41, 16-141,33,3 

1550 BRTHI7331.3.24. 74,24. 141 ,56,3. 10 

1568 »TflB4,l41.57 i 3,173,52.3-K 

1578 M*Tft237.57 j,£4 |4| 60 3 173,33-3 

1580 I«-Ifi24. 74,24. 141.50,3, 10,24 

1590 DPTH14t 3S,J, 173,53 3. 36.237,59- S 

1680 WTR24, 10, 2*. 141, 61. 3. 24, 189, 68- 3 

1618 BATA24. 166 \69. t - 192- ,240,8 24, 10 

1628 SATR24, 136, 192. .208,248,141 ■ 

1638 »T«!69- 4, 133,252 

|#4fl (Wmi« 5< \,\72 50 J 192 240 \; 

l&W I>flTft24. 185.40. 144. 3. 24 ,230- tti I 36 

1660 DHTR192.29S 243 133-231. 168. 

1670 »TH177,25l 217. • 193 -240,7. 2M 

1660 rjfirpil92- 16, 288-246, 168. 152 

1698 DATA] 72. 35, 3, 192,. 288, 6, 13- 62. 3 

1708 WTR24. 144,3. 77.62.3,168. 185. -193 

1718 PAT8160, ■ 145,251 . 165,252 24 

1728 »Tfll852i2.24. 133,252. 173-54,3 

1738 D81fll43,251 96 

1888 DftTft32,l2*. 124.226, 123, 97- 253, 236 

1818 WtAi0S 127. 225-251 9b 252. 254 160 



* Ptrntm CWRFT PLOTTER* 

7 *£rt* FV DrWID P?EE> • 
'• [*H0H<ilP*nfjM • 
9 PErt4 0* 

28 v- a 0Jn$(69> 

100 FRiHT-T 

200 FOR*l*8T069 RfftMUNi NEXT 

228 F0RHp8TO6Si 

MTHE*tt»D«M) 
240 t*>:TH 
250 f 0*rr-8T0*9 
268 S'HJ-58-lMT liM *iVfl» 
278 t*XTN 
299 PEH»L 

388 PRINT -3»*»H PtOTTlNC* 
>33,6 

319 R£mCUPHSl&H • * 

320 printn P £ 1 H T ' "S080f 

338 FORN-01021 KVlHt- J HE; TN 

tfjrtEl 

JT 

4io ::>H+i8 

428 lFS(H^«38THtN448 

438 F0RH»49rOS-Ni5.TEP-l VX"K SVS768 NEXffl 

448 NEXTN 

430 OfTfW tthf--'tM£Mrt58 

, , --• .' 

468 PRtHT-n- 

4?8 em 

999 REmDRTR FOR K» CHRRTa 

1080 *TM0 1 23 -4 3 6,7,8,9.10 
1010 bfitm* .4,6. 9 10. 12,14 16,16 28 
1828 JWTma 18,22.28.24.17,31,8,8,32,52 
1838 VmR0, 1.2. 3. 5. 6, 7, 9, 11. 13. 13.17.20 
1848 DRT«22. 24. 27.29- 32- 33, 38-42-46,51 
1058 HATFtl | 10, 10. 7,8- 7,6,3.4,3,2- 1-8 



You hav* TO control your mower around rhe 
garden avoiding the rocks and the k-na\ 
gobbling up fuel cans. The difficulty lies in 
the fact rhat if you mow over an area already 
mowed vour oil will decrease but your score 
will \uy the same and you know what happens 
if your oil runs out. So the trick is to avoid 
areas already mowed js much as possible. 
Once you have mowed a certain percentage of 
the garden you will go on to another garden 
with more rocks. 

Note when typing in this program that some 
of the characters in the listing are not directly 
accessible from ihc keyboard This is beOSM 

not all the character* on my printer arc ihc 
same as that of the One's but share the same 



5 REM LAWN MOWER 

10 TE*T:GRABiHlrl£r18B400 

20 GOSUBn' ■" :HlS»0tCLStB0SUB300 

30 BC-OiLEX-l»LIX«2 

40 CL5iPAFER2i INt>: 4i GOSUB3O0 

SO REPEAT i K*»KE¥* 

60 IF K*-"Z" THEN A8-"LEFT" 

70 IF K*""X*' THEN AS^'RIGHT" 

80 IF K«- THEN At -"UP" 

«?0 IF 1 *-'V" THEN Af-"DOWN" 

1O0 PLOTXX,YX," "sREH COPYRIGHT CHARACTER 

HO IF A»-"LEFT- THEN XX-XX-1 

120 IF Ai-"RieNT" THEN XX-rX'/,+ l 

130 IF A0*"UF" THEN YX-YX-l 

140 IF A»-"DOMN* THEN YX-YX*i 

150 CHlt-SCRN(X*/,,YX) 

160 IF CHX032 THEN GOSUB2000 
170 SC-SC+O, £lOIL»OIL-0. 1 
180 GOSUB1SOO 

151 IF DILXO THEN DIE-TRUE 
1-90 UNTIL DtE OR SC>46*LEX 

20O IF DIE THEN QOSUB 2100* GOTO V 

210 IF SC>4b4LE% THEN GOBUB 220Oi 3OTO40 

29? REM SET LfP THE SCREEN 

3O0 PLOTO t O,CHRf tl! t PLOT 1 4 t O, " <<MOWEJR>>" 

310 F0RA-2T036 1 PLOTA , 2 , " ' " t PLOTA , 23 , ■" " i NEKTA 

320 F0RA-3TQ22 1 PLOT2 1 A , " > * t PL0T36 , A , " ' " ( NEXTA 

PLDTO, 24 ,CHft* (3) t PLOT 2, 24 , "OIL" i PLOT23,2< , "SCORE" 

340 PLOTO , 23, CHR8 CO> SFLQT2,2S, "MOWERS LEFT " t PLQT23 ,2S, ^SCREEN" 

341 n*-ftI6HTatSrR«tH!Cl ,LENtSTR*tLl5t> ) -1 > iPLOT I4,2%n* 

tcontmutKt on page 21?) 



ASCI] code. They are the following. 

Line tOO a copyright sign CHRs<96t 
Line 390 a pound s^tfln CHR5l95l 
Line 680 a pound sign CHA$f96> 



Line 30. . 
Una 40. . 
Unas 60 to 90 . . 

Line 100 
Unas 100 to 140 
Una 150 

Una 160 

Line 170 
Line 180 



Ism. V90 io 210 

Lines 300 to 332 
Lme$400io430 , 
Linea500to720 - 
LinftS t300(o 1410 
Lm» 1500 to 1530 

Line 1540 

Line 1550 

Lmes 2000 to 2030 

Una* 2100 to 2160 

Lines 2200 to 2220 
Lines 2300 to 2340 



Sets up score r screen and 

lives 

Carts routine to set up the 

screen. 

Scan* keyboard 

Rubs out the mower 

Updates mower position, 

Sees wfKt is in front of the 

mower. 

II it is not a apace, go to a 

checking routine, 

Updates score and oi. 

Cats a routine to print the 

mo*er- 

Takes appropriate acton if 

dead 

Sets up the screen. 

Initialises variables. 

Instructions 

Defines characters 

Routine to print out the 

mower. 

Phots score. 

Prints oil left. 

Checks whftt is in front and 

takes appropriate action. 

Routine cated whan One 

mower dead, 

New screen 

Routine called when three 

mowers are dead. 



SC Score 

LE% Screen, 

Ll% Mowers left 

K$ Key pressed. 

X %, , Y % Co oroSrunes of mower 

A$ Direction. 

CH% ASCII code of character in from of 

the mower. 

OIL Fuel of mower 

DIE A flag 



VOUR COMPUTf R, MCEM8ER 1863 218 



ABF 

PROGRAMMABLE 




or ZX81 



ABOUT OUR INTERFACE 

The ACt Programmable Joystick Interface is 
• unique design offering the use <rf my Atari- 
Coirtpalihle joystick with absolutely all soft- 
ware, whether il is cassette or ROM carl- 
ridge, with the Sinclair Spectrum of ZXS1. 
The hardware programmable interface re 
quires no additional t-of I ware and accurate!) 
replicates the keys of the computer in » 
manner which is responsive/ to absolutely 
ALL key reading methods, both BASIC and 
Machine Code. 

The inter face does not interfere with key 
operation and can therefore be used aUnut- 
Unetmilv with in* keyboard. 

There is no need to remove the interface once 
fitted as the rear ex tension connector will 
accommodate further expansion, i.« printers 
or RAM packs etc. Ibis important feature 
avoids excessive wear to the expansion port. 

The key replication principle pioneered by 
AGF means that your own programs cut use 
eight directional joystick move men 1 by 
utilising simple key reading BASIC 

Two joystick sockets are provided which 
share the tame keys, for use with the 
majority of two player game*. Several inter- 
faces may he used on the same computer for 
multiple joystick application*. 

The interface is programmed by a two digit 
code* which is looked up on a programming 
chart supplied, for Each direction and firing 
button. The two number* art then selected 
on a pair of leads which are clipped onto 
appropriately numbered strips on the Inter- 
face. 

Once configured this cm be marked on a 
Quick Reference Programming Card fof 
slorinf with the game. As the programming 
is nor power dependent (he interface retains 
the last configuration made and can be 
immediately used when next switched on. 




PACKAGE CONTENTS SUPPLIED 

• Programmable Interface Module a* illus- 
trated, Complete with clip-on program- 
ming leads. 

a Self adhesive programming chart detailing 
imu to define which key -^ »imu!*lcd bj 
UP, DOWN. Ltl-T, RIGHT, and f-IRE. 
This can be fixed on to the case of your 
computer or if preferred the prole tin? 
backing can be left on. The chart is made 
of a very durable reverse printed plastic 
and is extreme! > easy to read, 

■ On* pack of ten Quick Reference Pro- 
gramming lard* for al-s-glance setting 
lo your games requirement^ The card 
•I low* you to mark the configuration in 
an easy lo read fashion with space to 
record the software title and company 
name. 

• Video Graffiti demonstration program 
which Is written totally in BASIL" to Uluv 
trate how all eight directions and fire 
can be read. This is also a useful high 
resolution drawing program, 

• 12 months guarantee and full written 
instruction*. 

JOYSTICKS 



KEY FEATURES 

a Programmable design gives TOTAL, soft- 
ware support, 

a Accepts Atari, Competition Pro, Wico, 
Slarfighler. Quick Shot, L< Stick etc, 

* Rear ex tension connector for all other 
add-ons. 

* tree demo program and instructions. 



I CONTROLLERS £ 



yc 



FOR USE WITH OUR INTERFACE 
Module or V]C 20, Commodore 64, 

Atan VCS, Attn 400, Auri 800 
If you require extra Joysticks for our 
original interface module mark order 
"OLD' Joy sucks 

ONLY £7.54 inc VAT + F&P 



FROM: MR/MRS/MISS 



ADDRESS 



SEND CW.O. <NO STAMP NEEDED! TO: A.G.F. HARDWARE, DEPT. YC , 



FREEPOST, BOGNOR REGIS. WEST SUSSEX, P022 9BR 



QTY 



ITEM 



ITEM PRICE 



TOTAL 



PROGRAMMABLE INTERFACE 



33.05 



JOYSTICK (S) 



7.54 



PACKIS) QUICK REFERENCE CARDS 



1.00 



ONE 



VIDEO GRAFFITI 



FREE 



2X81 D ZX SPECTRUM D 

DEAl£R ENQUIRIES WELCOME 



Please tick 

EXfOR T PRfCES ON AfFLlCA 



FINAL TOTAL 



T/ON 



...O.K. on all issue Spectrums 



2 tO YOUR COMPUTER. DECEMBER 1983 



SOFTWARE FIVE 



1 continued from pege 2!5i l * w 

1430 

33u I Et-RlGMT'tBtRteLiiXI ,L EH< STR* <LE%> ) It iPLOTSl .T^.LTi 1300 

3*0 FDR 06-1 TO LEX-4»fcl!«-P*rtHI>-:53*3tV*<AWDClt-lS*3 1510 

170 PLOT* ,■*,"%- iNEilT l>Ft!h€M 0**<«rft 1B20 

»i r» fU-lTIXFtl*4*H*-SWi - ■'n , .ft«!iit*l8*J 1330 

I'M PLOT*, V," " i NEXT FUiREPI POUNB 3 I ON 1340 

391 f LCI 1 2, 26 ."Ht- SCORE I "iMf-MOMTiiSTM iMItl ,LEN<fiTw« IH1XI » II IBBQ 

3*2 PLQTU t 3*.H#»l'i.OTgh 1 34 f C»«*<7S 1533 

4Q0 REM 1XITIW ISC 15*0 

410 AI«-(*tGHT"!lt-iat>X-iatOtL-*«.' 1999 

430 B IE-TALK * 2OQ0 

430 RETURN ZOID 

*** fi£rt INSTRUCTIONS 2*20 
SOU pRINriP*INTCHH*{4> t 3RCi 131 -HOtCIt* iPRINTCHM 1*1 

510 fH,0U,l,lO|PLDTl t 2,lG 2049 

32$ PRSNTlF-RlNTSFCUOJ-BV SHINBO SUOiURA" ,ri_OTO . 4 , ! HI ■ 2I-..1 

fcio pttiNrtPRtNT-eoNTROLS- sno 

620 PmNTiPHlNT" Z 1*4 1 I — rigtuf 2120 

00«INT"" — up / — - Dow' 2123 

**0 rRINTif>RtNT-9 — rott,, * --- ma~mr , , - 

MO PRlMT"_ *4»1 cm*/ 2l*-> 

700 PftSNTiPfilNTCiWH: I 401 SP£<7J '*>-■« SPACE BAR to play- 2130 

710 REPEflTnlh''], .r r *.- - zl60 

730 HETuRK rt <?9 

1299 DEFINE CHAftACTCftB 

1300 F0fi&-4A;44T&t67~.liftt'flDPiF'0>'£A.»iNEYTA 220B 
1310 DATA63, 44,63,2?, 43, 44, 43,29 22lO 
1324 FORA-44!*<<TU4ft3*l:REflDBi^t>€A,t*iNt*Tfl Z220 
I330 DATA63, 33* 63,33 ,63, 12, 12*30 2330 
1740 tMTA30 1 l2,12,*»3 1 33,bJ,73.fc3 

JSSO DATA7.5,T7,M ,41 ,37,3,7 2299 

13*0 DATA - *, 40.41,47,47,41 ,*0,36 2300 
1370 FaRA-46392T046.a49iREADBiP9*EA,E'il#xTA 

llHO MTA12. 3.-|,3t'. 31.15, fcl , ol, 61 23,0 

1390 FOR*-44A40T0464ntftEADBiPt>£n,&iNCXTA 2120 

1460 BATAI?, IB. 33,4.3,30. 30, S0,3O EBJ 

Ml" &*lO*r.*»,W,63,BS,61 .' T-4 



MlKE-264,10 

RETURW 

IF A«-"LEFT* THEM PtOTIX , *"*, ■*» 

IF A»*"RIQHT" THEN PLOYXX,**., "V 

IF A*-"00HN- THEM PLOTrt.VX,-*- 

|f a*-"!** ThCM »tflTH,y*„ # 

S~*RIBHTf<<STR' ( [MT iSCi I ,L£Ni3TRt< [NT 'SO l>-ll i PLOT 32 . 2« ,S» 

FU*»k|ljMT-L5TMf UNTlOlLJ I .LbN > STH( ' 1 NT <01 L > H - I I 

FC0T6 1 24,FU**- ■ 

RETURN 

KH CMEC> HMflT IS IN FTROmT OF THE MOTOR 

IF GMX-9S THEM 0tL-OtL*2t IAP 

IF OrX-94 THEM 5C-9C-U, 1 lOIL-OIL-0. 2 

IF CHl-M OR CHX-33 TmHI DIF-TRljF: FtRtOW 

RETURN 

REM DIE 

CT.X-UX-I 

PV0Tfc,24,-Q- 

!*OiL>-0 THEM GOTO 2110 

FUWt ,0.2. l«Oi FOR*- tZTOBTEP- 1 i MUSIC! .3, A, lOi MAI T3i «KT 

PUk¥9,0,< ." 

H41T3O0 

IF LIX'O THEM QOau»23<10 IV 30 r RETURN 

V-40 1 RETURN 

REM NEW SCREEN 

PU>TtO,iO,"3CReEH "*Ui*** MQMeD*iRL.0T9,H>,CHM(1« 

Pl_DT23i,lO,CMR4 (4) 

FQflA-|T012inUSIC1.3,A,l9iHnIT24iMEtTiPLAV0.0,O,0 

LCX^CX+1 1 NLrUnN 

FLAYt ,0,2, 1000 

FQAA* l?TOlflHtF-I ■ MUSIC I . 3, A, lOlUAT TTQiNE ■ TA 

REM DEATH 

Pl_Ayi,ii.2,10OOlFOJW-l2T0lST£p-| 

HUSICl , 3,A,10iWAIT20iMEITA 

PCAYO.'J.O.OUF SC-KIX THENtlUHK 

PMHTppSiNl'C-rti SPACE BAR la Ul.y" 

REFEATiUHTIL KEV4-' - 

RETURN 



Life-cycle 



C Maittand, 

Hamrmrsmtth, 

London. 

Pari 01 imi tj^mation txcited by John 

Conway '& game, Life, ho m tht- v,jy ir 

appears to simulsic a nalurjl process — the 

fife-cycle of a colony of cells or„ perhaps, a 

population. Narrow your evci when you Uwk 



at the display and you can imagine thai a 
colony til amoeba* j* loose in The cathode ray 
tube. 

For the best animation ciTcc** a Lifi 
program should be fast. This version for the 
iiiodels A and 8 is exceptionally quick 
and can handle up to 1 generations a second. 
It lives Mode 7 to plot the cells on a -It) by 25 
s:i id It i reals eclb along ihe opposite edges as 
ad latent so thai a cluster of cells moving to the 
lop will reappeat at the bouom. 

The progr am offers you the option ot setting 



up the initial display yourself or tatting a 
randomly ^cncraled display. There is also a 
choice i>f speed. 

Pot ih«we who arc unfamiliar wkh the game 
here is a short explanauun; Life generates 
patterns by applying a few simples rules to an 
array of cells. Each cell occupies a character 
space hounded by eight other spaces. If a cell 
has two or (hree neighbours it survives to l he 
next generation* otherwise it dies. If an empty 
space is bounded by exactly three cells a new 
cell is born. 



10 -KEY] SOTO 730 ;n 






440 


CMP 43?tBEU LB?tlN( 


20 REM PRESS ESCAPE TO STOP 






450 


.LB2 CPX 42rBE0 IM 


30 REM PRESS Ft TO RESTART 






460 


Cfx i3iBNE LB3 


40 flftl.-«.70rflwH-lc7l l'*ARl--0i~'AKH-t.30 






4 TO 


LDA 4CHARit DY4< >iSTA f SCI ) , Y 


SO D*^-*72iOPM-*T3t J T>Pt-W>7j^OPM-*i2F 






4BO 


LD« TEMPlRTS 


*0 fiCL-*74iBCH-V7-Si -^SCl -HIMEM ROD 336s "»SCH-H IMF M pj 


490 


.LB? LDA43ZiLDV40iSTA4SCL r ,Y 


V 256 






500 


,LB4 LDX TEMPI RTS 


70 TEMP-t.76 






910 


.LIFE LDX13 


SO t>«R-ASC"D"iREn CELt CHARACTER 






320 


.LB3 JSR COMP 


90 REM CHANGE THIS FOm CHARACTER OF VC4JR 


CHOICE 


530 


INC DPI i 1 DA4< :» CMP DPLiBNE LB6 


lOO DIM START 230 






S40 


INC DPH 


1IO FOR tX-0 TO 2 BTEP2 IPX-START 






550 


,LB6 INC SCLl INC ARL 


120 COPT IX 






560 


LDABOiCHP SCLl BNE LBS 


ISO JSR FILLtJSR LIFE 






370 


INC SCH t INC ARHiDEitBNE LBS 


140 RTS 






380 


. LB7 JSR COMP 


ISO. FILL L0Kt»3*LDV40 

1AO -LOOP 

170 t.DA(SCL» ,YtSTA<ARL) ,V 






390 
600 
610 


INC DfriLDA40iCHP DPLt BNE L80 

INC DPH 

.LBS INC SCLi INC ARL 


180 ENViBNE LOOP 






620 


L0A6232ICMP ARL 


190 INC SCHiJMC ARMiDEStiBNE LOOP 






630 


BNE LB? 


200 -LL1 LDfl<BCL> .YiHTfllARL) ,¥i 1 NV i CPV423?) BNE LL 1 


640 


1DA40»STA SCLlQTA ARL 


210 LDAttHIMEM DtV r!WnSTA SCH i L DA«ti 3€ i 


STA 


ARH 


650 


IDA4HIHEM DIV 2S6lSTA SCH 


220 (.0*441 






MM I 


LDA«ti30iSTA ARH 


230 .LL2 LOfl 4.33BT , X t STA *2FD7,)( 






670 


LDA4(-D7:STA DFL 


240 LDA 43FFF»XiSTA l,33E7,)t 






660 


LDA*li2FiSTA DPH 


2SO DEX 






690 


RTS 


260 BNE LL2 






700 


J NEXT 


27« PTf« 






7IO 


CISi*FX)3, I 


ZBO.COMP BTK TEMPI L0I40 






720 


PRINT " SELECT SPEED- 


390 LOV •O t L0A<BPL» ,V 






730 


PRINT" - GENERATIONS PER SECOND* 


300 CMP 432tBEO LLSl INX 






740 


PRINT - ' ■ A. 10" 


310 ,LL3 LDV *l i LDA4 DPL > , Y 






750 


PRINT" 6. B- 


320 CMP 432* BEO LL4. INX 






760 


PRINT" C. 6" 


X30 .LL4 LDV 42 I LDA<DPL 1 t Y 






770 


PR1NT" D, 4" 


340 CMP «3Zi8EB LLSi INX 






7B0 


PR1NT" E. 2" 


350 -LL3 LDV 440i LDAtOPL) , Y 






790 


PRINT" F. i - 


360 CMP 432iBE0 LL6i INX 






eoo 


m mn 


370 .LLi LBV 442iLDAtDPt) ,Y 






BIO 


IF At -"A" THEN SX-IO 


3SO CMP 432fBE0 LL7j INK 






620 


IF A*-"B" THEN SX-130 


390 .U.7 LDY 4BO t LDA t OPL > , Y 






B30 


IF A4--C" THEN SX-350 


4O0 CMP 432 r BED LLBilNX 






B40 


IF Af-'D" THEN SX-750 


410 ,LL8 LDV tHlliLDAlDPL i ,v 






B30 


IF A*»"E" THEN SX-20O0 


4J20 CMP432IBE0 LBll INK 






B60 


IF A*-"P- THEH SX-4SOO 


430 .LBl LDV 4B2iLDA(DPL i ,» 








tcanttnu6d On rt#*r page) 



YOUR COMPUTEH, DECEMBER 1983 217 



SOFTWARE FILE 



I continued from previous, page) 

870 CUB 

S80 PRINT ■ DO YOU WflMT TO' 

BW PRINT - ACT UP THE SCREEN?" 

*O0 PRINT* ¥/«■»- 

9lO A*-GET*tIF A*-*N- THEN CLStSOTO 1020 

920 PRINT "UB£ Z AM) X FOR LEFT AMD" | 

930 PRINT"ftIOHT" 

940 PRINT"USE i AND / FDR UP AND DOWN" 

930 Pf»INT*USE SPACE BAA TO ENTER" 

960 PR INT "USE E FOR ERASE' 

970 PRINT" PRESS RETURN WHEN VDU"i 900 PRINT 1 

E FIN1SHED- 

Q80 PRINT- NAUE FINISHED" 

990 PRINT' "PRESS ANY KEY TO STAftT- 
lOOO D*OETtN0OE7 
101O PROCCURSlOOTO 1030 



HAV 



1020 FOR N-O TO 3SOl^<HIMEH+RNO(99eH-CHARiNExT 

1O30 WDU ?3| 10,32, OjO(Oj 

IQ+O REPEAT 

lOSO CALL START 

lO&O FOR Nl-1 TO SXlNEXT 

1070 UNTIL FALSE 

IOBO OEFPRDCCUW 

I090 REPEAT 

IIOO A-OET 

IF A- 72 THEN PRINT-0"i i VDUB 

IF A-90 THEN VfXJe 

IF A»B8 THEN VDU9 
A-58 THEN VDUil 
A»47 THEN VOOlO 

THEN PRINT- 'irWDUB 



IIIO 
1120 
1130 

1140 
I ISO 
1160 



IF 
IF 
IF 

1170 UNTIL A- 
USO ENDPROC 



13 



Bridge-builder 



ifc#rffc*&y 



S Po\*eJ/ f 

Honiton, 

Devon. 

DlbOmNOSTSfn m HONSby helicopter may 

not be the usual way of constructing a bridge, 

but il is the method used in rhu game, 

Type in listing I — the graphics loader and 
run il. This SCI* up ihc user-dtiintd graphics. 
Type New and then type in lisung 2 — the 



main program. Save this on lapc by Goto 9998 
— it ts saved in two parts, program and by icy 
You can now Run ihe program. 

El will nan by showing a list of the highest 
Elites, jnd .liter j white, will give i demon- 
si nil ton, To start a game, press Space. 

I he name begins by showing an unfinished 
bridge with a man on it and a helicopter living 
above, Unfanunaietv, the man is blind, and he 
walks slowly forward while trie bridge is huih. 
Use the Space key to drop a section of bridge 
from the helicopter. You must drop it next to 



the end of the left-hand section of the bridge, 
to matte il longer. If you miss, then the blind 
man will walk of! the edge and fall in the river. 
Fonunately, there are three lifebelts with 
which to save him but the fourth lime he falls 
in, he drowns. When you have completed a 
bridge, you get a SO- point bonus and another 
bridge lo build. If you get one of the ten best 
scores, you can enter your name, Use the right 
and lefi arrow keys to select the correct letter, 
then press 0, Press enter when you have 
entered your name. 



Listing t, 

I REM *" fripnics Ji'.-vt 
'8 FOB = -vSR •" TO USA "u 
sf- POKE NEKT - 
9802 DATA 127 2,31,88,1*3 1*3 

#fie+ DATA 2*8 ,1131 259 255 i 

aa*,iea 

OOSS DATA 0,0,18,28,63,63,63 12 
9008 DATA 255 13 3 . 1*^ 138,240 1* 

e i*£ ,1*8 

9010 CATA 255 131 255 13* 

0012 DATA iff 183,1**, 21 

183 

J*14 DATA 0,x 124- 192. 252. - 48 

9916 DAT.: 15? 24 ,,ii 2? 83,18 226 
,132 

0918 DOTA B 60.00 .126. 24, 60 2: 

a 



9922 DATA (60,99.126 16: 1*8 

24 

0024 DATA Iff, 23 1 26? 
9926 DATA IB, 83 12+ 22* 1*4 
18 

9923 DATA 255 ^ , 256 , i 
0938 DATA 2*0.2*2,6* 7 7 *2 *5i 
048 

9932 DATA 52,44.36.36.52,44.36.3 

6 

0934 DATA 68,93,126,24,60,216 25 

3 ,*. 

9936 DATA 1*1, 183,87**7 12: 1*1 

88. i 

0933 DATA 224.' 240 . < . 24S . 262 , 25 

4 255 

9040 DATA 7,7 If L8 31,63 1*7,88 

0042 C-ATfl 255.72,48,18.7.4,2 I 



Listing Z 



2 IF jure t* 

3 C 

-t Z ;•* » ij DIN hi 1 18, 10 6 

3 3 96 CL'S 
5 for : =. ~: is LET -a : ■ ' 

$.»-=.* Li s 

ZZ? ,3 .10 !££* .: -: IK. 

if ■. . a > i e ■ h 

f B0AOEH 1 

im THCM ;--fi 

SPADE 
■ DROP S£ :-£ 

il roc : IP FO* : « to i 

48* 8TBP ii? SffP .J: : « vt j 
Nf =OCA I -"!' » 

•-LS 
12 IP J* Tgg N LET • «0 PAINT " 

^al - 

j I ft t S I *. i r ' 
14 IP NOT 1* THEN ffSIMT *0 *a 

ccs .; iw e tiiti id • 

I mil-* 
4if TZINT AT |? PflPJC 

BAioee 5«e e 



so ^op : ■ . 

,- «- ; ^ z ^ ,r 5 
INT AT . 



19 5 T E- - 

1 WEXT 3 Pfi 

. .. PAPEB 1 



B*APEP 6. . 
Ll r«r=. ri-*B ; 

LL 

88 ^DP 2-6 *: £ STEP -- - 

AT lf«Z,9 PftF-B 4, TAB : IMJffO 

SB a PAP8S *. *■ • 

^«Fffo 4 *je-~ ; 
78 FOB ;«0 TD * PftINT PAPfP * 
P/T :?-; P CEEEEEff' 
AT ;«-; j;-; EEEEEEE 

NEXT ; 
?8 PAIN* --^fr - 5KU-« T ; IN 
13 8. FFPPFF AT 

78 fqb z*2 Tfl 7 STEP 2 P* 
: ;- IN' ; fn: -.E- 1 " i 
78 fjc : - E z; :r.~ -_ f ; i 

; .25 I'.f i PAPEP 4 

-t r 
6C -E" r *5 LfiT S "0 
51 -6* U, =? 

3i FOP "«* T" r, .; ^^:-.* -~ il 
I I A" 12 : J NEXT I 

S3 I* r, *25 T„j N SO Tfl .20* 

64 LET C-bA lET 

35 IN* 
100 POfl l«2* TO STEP -1 
110 PAINT AT 10 f AB 
US FOP rf»l TO > 

120 IF P-l THEN IF IUCE ■> 
MEN 00 TO 200 

121 NBKT 

_ JF j i.. -me-. iO SUB 2 IF **r. 
IBN IF PNC , 1 THEN 00 5UE i 
130 NE''T « 
135 PRINT AT 18 
13"* IF N«N THEN PC:-. T AT J. J N 

AT 12 N M LE T n»h*_ LET 
f«i*I r -~ --■ i - '"10 1 ^■ : 

'APfp 3 ;: 

33 

140 o: TC 3*8 
190 - IT -- 

•08 LET r C«0 IP A -. ^-*N _E~ - 
-16 

210 IF Set, THEN LET L^ 
££0 I- -i N ^P A>*4 ^HEN -E^ -.I 
2 
250 FOP -~ L 
26^ --I-.----; A*; * AT *- 

fit ■ i*. ^^.: 

EP 7; F- 

THEN PPINT OT I - 1 .A* 

2-6 LET --- 

£»C 00 TC i38 

?20 MBIT AT 

: a- .2 .-. 
fop r^: t;- ■ 

:55 PEEP ,1 5." PftlWT AT . . 

AT .i. ■,-: m 
387 BEEP ,1 PAINT a- ;. ..; 

" .2 N*l 
3S0 NE-— r 

370 FOA r=.^ TO 15 PAINT AT I 
NT Z* ■ . . ■ - 2 . 

•- NBXT J 

- - 

■ 
PAJMT AT 18 !,*2 m£lP 

c z»i T o 5 ppint at ie N*; : 
beep .1 ff;'^ at :* 



BEEP .1 li '.5'* 2 
365 i.r ^ 
2z~ IF i-; TNE 
; : " * *(3C 

■ 2 PAPEP 6 F_A|~ 
LIFE^EE." J A 
1 _£F- 

■1 TC .? FOB !•• T 
tec :j f = fr ;>: i .5 " : 
N ExT - 
397 PAINT AT .' ! AT 18,N+5 

AT . : N ♦ J 
396 FOP T«0 Tfl * PPZ', T ".-f: ! 
.AT IB-- 31-3 EEEEEEE 

• , HfJxT 3 *P INT fA"E' 7 
T . INt AT :; £* 'fpir« 
3 99 00 TO ?* 

^£T d-34 i lv»2< 
885 - • ■ ■ " 1 5 , ft • 1 .. 

■ - _"e; -. 

^2 " 

■■ 

5 BEEP 
M NCXT : 
S3? f;s : «, t- _ .T»r .; p; 

**0 FOP : =J " 
350 PC INT AT s 

= 
r?5 EEEP • 

960 NE' _ I 

565 -?p : -IB to . ' -. 

- PAINT A' K AT :.. 

- 1 " 

966 BEEP .(?- 

369 rjE. - r FOB I -f 

- : paint at i .: moo N**T : 

97fl FOB ;»2 Tfl 12 PAINT 

PT 1-1,0 e BEEP ,91 

: <E-7 7 

98C PAINT AT 11,8 INh I 

n FOP 3 a9 Tfl 1 *TEP -1 

NT AT I, d - : 

90S PC I-.* AT . 0. 

999 iwr Atrnjj 
1000 F08 :«2* TC 38 PAIMT -" 
z 1 AT :2 : " BEEP .01.2 

.- i PAINT AT 11 A 

1010 f;x I*4 ': 29 BEEP .981 

PP 12 I f .? - 

for C5»* Lt ■ J r .j 6rid|t I - . 
NEXT : 
-020 ceirr AT 12,29. 3* 

10^0 PPINT FJ.ASM 1 T 12 

1 INf J FOB s-1 T" 50 L*T 

I-B+l PRINT FuASM 1 - 1 

" A- . JEEP .01,1 nE'T 

; PPINT PAP-fR J; 

1 
184* PAINT AT .2 O PAINT AT . 

3 6 TAB 26 

1180 ^ft - *f BC T : 62 
3800 LET nafi + 1 FOP HIT TC 20 
3010 PRINT AT :~2,n*l. PAPER 

8, ink - :..: PAPER 8. AT i- 

l.n, ' ,AT ; ,fs I" AT - + I .- 
BEEP ,1 22-* 

?0:f print paper i.at : ' :•.' - 

DEEP .1 21-1 

3020 NCXT : 

3838 OEEP .14? SEte BEE 

. 24 BEEP 1 12 BEEP ,2 
3040 PRINT AT J? r r^CET I 
". I 



t continued on page 2231 



216 Y0U»*COMPUTEH. DtCEMSIH 1983 




£100 TO BE WON PLUS MANY OTHER PRIZES 

It you are skilful enough 1o help Snaker on his deadly mission. 
To penetrate the hidden depths of the egg plantation and 
discover the secret symbol which is your key to success and 
fortunc- 

Scavengmg the egg plantation Snaker grows by munching 
multi-coloured eggs. With powerful laser venom for protection 
Snaker must battle with vicious aggrenoids. kill poisonous 
viproids and avoid pulsating chrystoids. Then journey through 
the many mazes to reach the power stones of regeneration 
How tar can you take Snaker on his mission? 
LASER SNAKER features challenging arcade action, 100% 
machine code, superb graphics, colour and sound. 

Progressive difficulty levels, bonus lives, high score table. 
ey board or Kempston Joystick. £100 to be won plus runner 
up prizes. 

FULL COUPE miQH DETAILS SUPPLIED WW EACH CASSETTE 

4SK ZX SPECTRUM 



IX 







£100 PRIZE 

TO BE WON 



Dealer Enquiries Welcome 



NAME 



ADDRESS 




True Close, Common Road, Headley Newbury. Berkshire 



Or deb* my 

1Mb 



LASER SNAKER & K 9S 

ptyabto to POPPY SOFT, 



i n I i i i I m i 



u. 



Skjneluft 



ctof e 



Stof c 
price 







South London's La 

Micro Compu 



I' 



HARDWARE 




Acorn Electron 32K 

BBC Model B 32K 

Model 8 Smoked Perspex Cover 

Disk Interface 

1 OOK Disk Drive 

200K Disk Drive 

Word wise Word Processor ROM 

Beeb Cafc Spreadsheet ROM 

View Word Processor ffOM 

Gigantic range of Education. 

Business and Games programs 

Official BBC Service Centre 




£199,95 

£399.95 

£16,95 

£95*95 

El 99.95 

£239.95 

£45.95 

£39.95 

£59.95 



& 



SINCLAIR 



Spectrum )6K 

Spectrum 48K 

f6K^8K memory upgrade kit 

ZX Printer inc paper ( M _^ 

SpearumOuickshot Joystick 

Fuller FDS Keyboard 

Fuller FD Keyboard 

Fuller Box 

Fuller Master U 

Centronics Pf interface 

RS232 Prrnterface 
Kempston Joystick interface 
Kennpiton Printer Interface 




£99.95 
£129.95 
£24.95 
£39.95 
£19.95 
£39.95 
£29.95 
£29,95 
£54.95 
£39,95 
£34.95 
£14.95 
£44.95 



CBM64 ., 

154! J /OK Dak Drive 
C2N C dssette Deck 
Simons Basir ROM . mA 
Pe [speed Compiler Disd 
Easy script Word Processor Df 
Easyspefl Checker Disk 
fVacticafr Spreadsheet Ores 

nuk 
VfC 20 starter pack 

fine cassette, mtro to Basic and 4 games] 
VIC I6K RAM PACK 
VfC i6K/3KSwit( habte RAM PACK 
1520 printer/plotter 
I 525 printer Wk 
1576 print / 






£199.95 
£199.95 
£44.95 
£49.95 
£49.95 
£74.95 
£49.95 
£39.95 
£44.95 

£134.95 
£29.95 
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£166.95 

£219.95 
£329.95 



ATARI 



400 1 6K tfK BASIC A £99.95 

800 48K trie BASIC Phone for low price 

600XL JMC £149.95 

OTHER NEW MODELS JUST RELEASED 

810 Disk Or IjJJJJJJJJJJJJJjIl £289.95 

410 Cassette m £48.95 

850 Interface £T 29.95 

Fantastic tang? of software in stock 
on cassette, disk and POM 



DRAGON 



n 



TEXAS 



Dradbn 32K f 169.91 Dragon Drsk Dnvf 

Di sqort b**C Phonf for prlcr 
Official Dr*$on Servkr Centre 



(269.95 



Tf99*4A,16K £99.95 Emended Bayc €I9,*S 

Joysticks C19.9S CC 40 Portable £169.95 

Speech Synthesizer £49.91 



ORrc 



EPSON 



owe i iwc 

OR1C 1 49C 



C99.9S ORKT Pr.nrer P ho n* for price 
£ 1 29.9 S Large range of software 



HXZ0 Portable Phone for price Full range of accnsortnplus 
Epson Printers — Big Dtstounu programed m stock 



VISION STORE KINGSTON 

3 Eden Walk Precinct, Kingston, Surrey, Tel: 01-546 8974 




rgest Specialist 
ter Stores 



PERIPHERALS 




PRINTERS 



DOT MATRIX PRINTERS 
Epson RX80(P| C 2 89.95 

Ep^on RX80 FfT{P| €329.95 
F pson FX8Q |P) £439,95 

SeikoshaCiPJOOAjP} 
SeikOShaGPIOQASfSj 

seikosha c,n novc (Vfcj 

Seikosha GP7S0X IP) (SJ 

Seikosha GP700A Colour 

Star DPS 10|P| 

Star DPS 1S(Pj 

Shrnwa CPPO (Pj 

DAISY WHEEL PRINT 

Juki 6 1 00 (P) 

Smith-Corona TPt fP) (S| 

Stiver Reed Pnnter/Typewrrrer (S\ 




Spectrum to Centronics 
Specuu^ to RS232 

LZZ 



£39.95 
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MONITORS 



-:. 



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Sanyc Med ! -r« Green Screen 

s*nyo Hi-'p- Green Screen 

Sanyo RGB Colour 

Fidelity RGBlCoiour TV Remote Control 

Commodore 1 701 Composite Colour 

Monitor leads in stock for all Computers 



£39.95 

£109.95 
£279.95 
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JOYSTICKS 



£429.95 
£399.95 
£499.95 

(PJ Parallel-Centronics. |S| Serial RS232 

PRINTER CABLES - Centronics 

BSC £14.95 

Dragon ^^^ €14.9S 

One £14.95 

Atari £24.95 

INTERFACES 



We carry a large range ppr ed from 
£6.95 to £29.95. t RACK-BALLS aisr 
storked for ARC A DC Maruacsl 
Wilo, Ouidcshot etc, 




CBM64/VIC70 to Centronics 



E 34.95 




C ASSETTE DECKS 1 

We carry a wide range of computer 
compatible cassette recorders from 
£29.95. We also stock several of the 
nevv Computer Data recorders. 
Our range includes Sanyo Pye Data 
Atan Panasonic rensai Commodore 



SOFTWARE — over lOOO programs in stock 



ARCADE GAMES 



Vision Store carries probably the largest range of 
games tn London We carry all the popular trtlev for 
SINCLAIR ■ COMMODORE - BBC ■ ATARI • 
DRAGON • ORIC ■ TEXAS etc 

Continuous Demos 



standard are kept tn stock Foreign languages, maths 
and general knowledge are just a few of the subjects 
we cover 



BUSINESS 



EDUCATIONAL 



Programs for children from 5 yrsofd to 0' level 



Let us advise you on the Business application for your 
home computer Word processing. Forecasting, 
Accounting, Stock Controf, you name it we've 
probably got rt We always have several systems on 
demonstration 



iXPOftT- 



our 



\tf 



1W 



are an< 



so 



,vailab*e 
customers >P ^ u « 

«3ssr 



MAIL ORDER 



We send our whole 
range anywhere m the 
UK. by FREF insured 
Secuncor DeJtvery 
Please contact our 
Croydon office 



Ask about our various 
r redrt facilities with up 
[0 ^yrstopay g^ 

ACCESS "•■ 

BARCLAYCARD 



VAT All our prices 
tnc VAT I 






VISION STORE CROYDON 

96-98 North End, Croydon, Surrey Tel: 01-681 7539 




t 





Cuthbert is i 

the Lunar Ian 

Pad, waiting for the Federal 

State Visit. He must turn thi 

by walking across the switd 

located at the comers of f 

before the invading Moron 

k Vatch him do Ms Victory Dance bif 
e tackles the next '-Pad" and anof 
arger, set of Moronian Invaders. Can 
ou get your name in the Hall of Fam 



upefb full co 
accompany' - 



All Cassett 
£8 each 

(Includes VAT & Postage) 

AVAILABLE FROJ 

DRAGON 32 

DEALERS 

NATIONWIDE 

OR ORDER DIRECT 

FROM: 




i 



MICIIOD 

Stnd1tld»MH«Bp t« FREE Sof1w*r« Ll*1» 1<jf Dragon and T»mdy ring* of compu1*« 



41 Truro Road St. Austell 
Cornwall PL25 SJE 
Tel: 0726 67876 




sorrmKETUM. 



(continued from p#ge 2?8> 

3&B0 "- 

: >e« -- lS . . :■*" 
-:■* ; = . r; see e 

:■ ;t> --« :■: ~: «.; 

c : e i »- : ruth '.i' - ; 

_f- ;*£: _rrf :i» «=•?::£«,; 
let i|<:i*zl 

»: re 

:.-•-:■ ■ ;■ .- ,- , - 

- • 



r at 10.0 PflPI s : 

re :•:: 

wn.fi *i • if e>3* TMfii. ue 

T ; =: 

I.l-PI 13 ~"2 JC _ 
Si? 
** INK.fi l< £ TMfiN _£" t . 
C :>«i -.? PASES 

.? B*E= .03 NEXT : 

9ti -50 

::»C LET f 10 3 ; PRINT AT .: . . 

ss ; . - i 

:*:c pok :*: _ ; » 

Jii? »fiEP »0OS ; 

-= - i - r -: -hj 

;*1 LET k :- . =- s LfiT 

»t LET ai"-i r-- -E~ n s r • 



- * r LET - • : **■ _E~ 

3230 Nfi*T Z 

nS :p» ■ ■: TMfi :* 

tooe r_i -. » 

1 INK - TOIA 

f* 

- 
'OB r «: TC 10 PP : 

£■0 5 kvAs- 

seacB rflPT 

Jfl ;«: - : ■ foA r*_ r« 

l0 -;► i; ~: ic pp:t - t 
■ ps?"p r Ink t DvfiP - ~- 

- :- : - f *• TMfiN ;.* ~; 

next -.£■- ; NfixT . 

iC~3 -5~ 3k ■! :: T£ 

- ;*a 

i i. 



64 function key 

Mark Tingle, 
Essen. 

I'HIs PRtH.RAM Alli'lv OflC tO define up to 

four wonts for function key* I - 1, P3» l - "S and 
two words for funemm key J - 7, The four 
words arc juxsscd with the u» ofthe RtncHon 
key on its own, ihc ruDCtka key .in J tbe thifl 
kty. the function kcjr and dbe Contmodon key 
jnd the fimctkn ktv jnJ the <lii\ key Bid) 
defined wtwd tan be up to nine tharaacrs in 
tengrh jnd can include the jhhrcvuifJ 
keywords like Gr li>r (ioio. 

No s}>jli> <.an he Included in the winds 
unless the itide b altered. This t\ becaijic the 
machine lihIc [*kkv up & fcpa« J"i (he end ofi 
word- i'uiiLinHi kev 1-7 jnd the (Uinintndore 
key have been pm|> rammed to alter the border 
colour. Function key 1*7 and tbe Qrl key hive 
been prngrjnmicJ to uliet the screen colours. 
The code it divided into vs parts. 
Part I displays the title and the sun 

address oi lbe cude. 
KEY DEFINE BV M. TiNGU SVS2S6'tS6 
STARTS 
■^t.irr lucation lot the tode is JWJft to 

I*ari 2 wis i he interrupt pointer to location 

400!) which is the Matt of the m.iin 

program. 
Pan 3 Jeiect!. which key h,is been pressed 

and then jumps to the ritrxt rout inc. 
Part 4 is the prim word routine. The KM1 

bestkin for the code is 401^1 to 40lr»7 
Paurt S is a delay routine that stops more 

than one word being printed on the screen 

At tbe end of this routine is the lump for the 

esit from interrupt 
Part 6 chMlgBS die SLtecn and border colour. 

At irw end of cbsJtgMif cutout u jumps to 

the dettv routine to avoid loo rapid a change 

ol colour. 

The ASC codes of tbe words ate stoied from 
location 4OSO0 to 40640. 

Two lines of the code will need lo he altered 
to include spaces. 

410 DATA EB.C8.C9, ♦ ♦ .DO.F^eB.WCS REM 
1T7DP0KE M, ■ ■ REM 

As the tnjk.hinc ctnle picks up a specific 
character ji the end oft word, J character not 
normally used would be the best substitute 
e.fc. it. The ASC code for rr is 255 and the hex 
v.ilia tor 2SS i% rr. Then * + will he rep la ced 
hy FB and * x will he reptoced by I'i'i. 

l\'j carnage return is required at the end c4 1 
word the svmb*»l •" is used. Although iheffi is 
a check carried inn on ihe datu ensure I hat a 
copy is taken before running ihe program. 



Logger 

Steven Alkm$, 

Apftfeton, 

Cheshire 

Ik wis ciami 

motorboai up a 



<m® 



10HHLL4 J P,»2ijF. 

R»0TO1 ^p-ttseee 

3@LL0 LDXrjtFF 
4CJSR#FE66 
■59LL1 LDR*?FE0,X 

7@LlR#80E0,X 

eesTR#8iee,x 

1 00CPWQ#FF 

110BNELL1 

120LDXQ32 

1 38LDRQ3£ 

140:LL3 STH#7FFF-X 

1 50DEK 

166BHELL3 

170LDRH*FF 

leesTftteeee 

190STR#801F 

200LDAtBaea 

£ieE0R94 

2£©STR#B0^2 

238-LL4 JSR#FE?1 

240STV#8© 

250RTS 

2603 ;N. ,P,»6 

areco , p. *u , f . r-o ro# t£« 3.32; ri t^eeee-tPF h rteoiF-#FFj h, 

280fl-#8JF0,B-liL>-e 

ZSODO.LlNKLLe; IFtf80-*)3R,R"Fl-l 

308IF?#80-#1F,R-R+1 

310C-?R 

32e?R*l>IFR.R.5i5<B; K*800l+CR.R, 

338D-&+1 ; lFO^100-0 , B-B+ 1 ; ?#806©< 

340U.CO32 

350(1*0, P. M YOU TRRVELLED:''D 

3687R-R, , ?#B002-?#B002 : 4; N. 

370?R-#RB;F.R-0TO150,WRITjN. 

390P. ,, flGflIN?"iDO,LINKUL4;U l ?»ie0<>#FF;U.T#e0<>#39.E. 



for the Atom you drive a 
tog-tilled river. Controls arc: 
left — /, and right — /. 

] :nes V)-\h(l avertible the code lo scroll the 
screen downwards. Lines 170-250 assemble 
the todc to draw hunks, cUca the kwdspcaaci 
mvi scan i he kcybtsard. Lines 270-280 clear ihe 
H rccn. draw banks and set up position of boat* 
A, number of logs* K, and disiance travelled. 
I>. 

I joes 2W-WQ link to ihe code (lines 
SO-_^fl) and niove the boat, Line 320 draws 
ihe boil and logs Line JIO increments 
distance and every 100 distano- increases ihc 
number of logs. Line M0 checks for ihe boat 
crashui^ Lines 350-370 prim distance and 
explode the boal. Line 380 asks for another 
game. 



H2?>?»-1 

«#7F;?#801F-#7F 

" ' i F . B-0TO200 



It FEM C0f«ClD0l« tV< FUNCTIOIJ KEVS PV 

itd iflff, -3,5^ ce.ca co ie-oo fo-4c,4o 

•cat- 05 . a$ P fc*,« 

, I BBTfl ■• 3 o_ 1 - ,v .-l .i ,j .-. ,.i 

140 Mm o;.m «.(i v.w 

150 DATft jn,3i.j5,«.*o.i:.-n.oi. 12. 14 
ie« mrn ij.ae.aaoo Ktw »• i ^v 

^(I- :rif*T *IiD*"-Ej-S DI&PLhV .+***»#«#« 

I7i REn START OF POINTER W I'*T£FHiF' 
180 BAT* ; : Ai> 4D-aS .4 -.- » 

3, (SO ££tt £iir> OF 



WHICH FUHCTtOH 



1*0 WTA 3C,3B. 
•£SRUPT " 
»0 *«M : 

N <> «i 00 

i^e wrH hi> to. j« ft; 

23« DAT* C?0£,J».OS 

i*e WTfi A2.14.4 : :? « W 

iia r^TH 69 i*i.iE.*c.rjr. sc.fls.es 

MS RATA CS.05 W.;0. fti ;s,Mli 3t> 

*ro »Tfl a2C3.ei.M.05.r^ . 

2M DATA , - • K w o? « ;,; 
i?e BATA 4.; ftr.K.C4,04.Q0.-t 
JOB UflTR 46*40,07. X.iO 



31S CATR W. **.«-» 

iJ» PfiT* di.D0.09.,A2.M.4C.K.ac 

J30 DflTA C9i0i J na.0S-A^ ,64,+C D7 

340 HflTfl 9C.C? 04-W J lJ>.^.SE.*C 

350 OATO B7,PC.flO.C5.t^03.M.3L 

360 BftTN «i.7w.« SD.ai.C3, 90. F9 

370 tMTfl «9.W).&D.02-C?.0t.H>-*4 

330 F*T* R2,t2 Ptn E»0 OF ktV ICTtCTIOH 

j^e fien start of print wpb routiic ••• 

400 DATA «.NfD.» ?t ,<■ 

410 DATA E8.C3.C9.20.D0.F4.3*.d4C* ROt 

END &> HINT COUTii* •*»»«*•♦•»•##•# 
*20 FfH ^TP«r OF fiELf^ fOoTliC ftOi EXIT 

FROH iHT£P*(.fT t«»«t«»»«t»*tt»«i*»»* 
439 DATA H2,0O.A0a0.Ca CO. FA. DO 
44fl DflTfl FB.Eff.£0.FA.Da.f4,4C-3l.EA ten 

D(C OS* BflLflV ROt-'*!'* •*•#•#•♦♦•♦»**» 
♦50 REH iTART OF £tft#X «FEEN i pOPfiEP 

;Ct-X* RCSJTP€ #••♦««?*»*♦»#♦•••»*♦» 
*£0 DATA C9.WCOOfc.Mt _0 W 4C 
470 DATA IA- *a.C*0-i.OO £F 4 21 
400 DATA M.£6.E«. 13-M.06.3 
499 DATA KJ4C e6 -?C.« 00 4t 6F 

(confirmed on page 225 f 



YOUR COMPUTER. (MCEMRER 1983 223 



ORDER FORM 

For advertisement appearing on page number 28 



SOFTWARE FOR SPECTRUM, BBC, ZX8T, COMMODORE 64 AND VIC 20 



3D TANX Spectrum 1 6*. Don 



.. ....,....£4.95 



rney pour atrtm. am undo* 1hr* n. a M frMmr gam* **i JO b*»»w« v. 1*tw«k lound 
effem and if anpauHt » bra; f hkupi < onwwrcfy « the tfum 

C E IMTIBUG Spectrum 1 6K. D. HmIii , „. . ......... £4.95 

lung (he #1 aot mo we** hon* wnm a lacntU veruon at tm old favataa. r Papular Com- 
puting put thn nflne On no. CI J e"i*8t* #1 the morning jntt I Iwf lo art ujjlonioriovv 



METEOROIDS Spectrum 1 6K. Don Priestley £4.95 

■- hnru *et \ior\ uf mn tupe'i) ariade game PatHed *nh ledtu'ei 

SPAWN OF EVIL Spectrum 16* Don Priestley £4.95 

Mo* [he r.omp*utiet of inn. mounding game fuve Qeen wjurrmJ **o * !6K ^pmrum A 
j rmrac* of programming fh(i n not jujii jncthrf jn*.r Zap gjme VOuf t*»i and 

in alio need nerv* *nd ttraiegy ■« deakng ma 



, £6.95 

Programme^ wujrrJ Don Pneitley hdi magirally op* atrU nn OKpnji /X8I belt iel*r to 
tiptoe mi pic potential of the 4K ipectrum ' Tnii game mu« be *rrni lo be bf *t»t fl O 
the ben uvt of ifwrtrurn in <u dtpecti thai I ruw vren Hon* Computing Weekly 

GOLDMINE Spectrum 16K.S. Goodwin £4.95 

Uv «» Jteqy jrrf * strong vein of luck Id did, your way in !«**» *TC Out Of OHUn 

TRAMlX BBC 32K. A. French £6.95 

Spectrum 16K O M«l« ,£4,95 

* ybu tan rtwHi i*!f , an faner and jou re net ttnour Mmd rhrt tomp*tety new (#wi 
rupenencr « tor you 

SPEED DUEL Spectrum 4BK. K, Lerter £5.95 

Many n#vr ir*d. but mow rvr*e fj*ed fQ C-lptufr the «UkH fM*»«* a* * I'tity tampeMn* 



w/i.i'A'y,. ! * ^ 1 ^ 



mm* DCmVT H/F THH GAME 



SOUND FX Spectrum 48K. Don Pr^«l*y £4.95 



APPLE JAM Spectrum 4SK.E, Hickman . 

Thf bnl 94n*l i«rty jpn of I Ml uarr ng i ■" 



.......... £5.95 



ttm fwfn *n f ipm aoUU f>Vy No rrucfurw cod* knawHgr nrvdni 

DISTRON Spectrum U,or40K B. Eatiwood £4.95 

AST RON Spectrum 1 6 or 48K. M. Lewti AR Eait wood . . . £9.95 

i'ou ntrd to rrjd inf pfoa/^m bootWf to joprtcwjit tht vjtl '*ngr of ffjmrn lor tfirj 
cambntd HMmb«« *mj ioo<M UVfful for Bfgnreti «nd r^fffi #«*p 9uy awr boQtkt 
*■« an j tap* f-BECii 

ZXEDftOOlkltJ Spectrum 16 - 48K. ff. Entwood E4.9S 

fxtO it « i»v»rrty( rdec ro* uw grutw i«k o» <*« ^wrtrk»n en (r* )(K 091 ntmam 
- mw und offf*j prvff«l uMfm and Umri^ioij f * *m« 



rfwiroTrrn^trtir.-' 



AutouNf ntNUMeet jnd vt 



BBC 32K. A French £6.95 

Commodore *S4A. A. French £5.95 

SoHirum *SK. Don Prleltfcy £4.95 

L in*tt *olf*ttn«j jnd U* 
10 imvivr Jt Chcuior' *i*i you w jo* u> AWtfuUtt cf* tqu*bUmB popuU(«n. (My m 
rjvout *itfi in*- powrrful i*t»« poKt jnd rn*k# the ngm OKmuni ro Mrp corifoi of 
your VOW** UibjKU? CJn you pffvmt ujfuiw ck tv*f> £(**&(* JM*y pun AIMVUKn « 
Ifir mcviUbtr r«-K>lu(Kin A uvnplr ■ jnd FfMfUirMW urTUUHfl *flv*r-. 



hf^'V 



And r.(Tin-rn 4*tw not tafujuaed by rvm doicm of BUffi I womd r Jtr »uw « br- 
mrj anong cnt bMI IpKVum gum I ri*vt pUyCd" — PopuUjf Computing W«*ly 

FRUIT MACHINE Spectrum 48K.G Pointer £4.9S 

An rufiw fin* pfOgf *n from C* rronct **i »u(»i f*Hurri *\ nudgf Dow, gariHr 
UipffD ulf of grjpnm and coiouf Am Ike chr f f* thing joct juu ji joacm«< 

WOODWORM WHACKER VIC 20. C Douglas £4.95 

- - 1 - irmovf pHH «nd fnrf lhcoMc<f onoitl w<n fJU moving naajn *n<f #dd 

TROM Spectrum I6K 8 Williams £5.9S 

Dan t get ottm try chr oytn or nabom] by tnr nttan m you dnpt* Jtr bC-WJricr An 

ji^rv* who*, but fytif hmlr ilirg JfiO «HKtrv« (*mom(* ro bur range 

PERSONAL FINANCE Spectrum 4SK. S- MWt £6.95 

' dkF the da-* Uaugrr out o< your watdrobr and put Fwn to mr *i your Iprcirum Nrrd 
*r i#y mo. pf 

2003 A SPACE ODDITY Spectrum 4BK. C. F-ye« .... £4.95 

An inrriguing gxprwi «dvrr«LpTl w<ti « M«TWJ'« M novtl *t CI WuDd FflvcU 
O 



E6.95 

iy Irving [ittrrmrly uirt'PiirrHMy Jnd #iicjwi 
lor Ituman mrrMmii 

SLICKER 

Spectrum 1 6K. A, OkJteni £6.95 

Vic 20. G. Pointer £6.95 

Commodore 64- G- Pointer £6.95 

BBC 3 2 K.D. Regan £6.95 

jm tomr atong yuhich n to 
brMhTftty origp-i« » IO trmu xunUmxm » four of (nt mow PbpuUjr mtro% Mm I 
t fvimpioni Cut by (Onpuef mg Lrve) > brforr Knvrt 

EASY ZXB I . M. Wright 4 P. AruncfeJI £4.95 

BmN rurwm but wnp** «fv#muir gamr-i TWKUMy wtcirri for t*»kdr»n of Jrit *Ojn 

SUPER FRUITS BBC 32K D Hotklm , £6.95 



l^h^Miii^ 



Jm i ■ T i ^Tnl l >rT?i Ti ! 7 ^ 



3D GRAND PRIX ZXB l » 6K M. Wright £4.95 

A brand new '*H gjme 'or rf* It*: /Jt81 Hive [fie drivtwi «ww «i you tmtlH- 

you* w#y mio tnf * to Waxn om lor iwariH and ttay on rne tr Jtk ro. up *ftei Up and 

QIC rjirqutrrd Hag can be your i A unour icatuvr of tnn garnr ri auKXn*:* dirfKuiry 

regulation 

ZXED TOOLKIT 2X81 . R. Eastwood .£6.95 

Trie ZXB I ver wjn of trui powerful pr orjr ammrrv unMjr 

METEOR STORM ZX8I DMeeUs 4.95 

fJM rm artadt aairjn Dcfentf your moono*)* aoainjt iwarrm of rJewrucbve meteoXadt 
|Grapf>ci Rom wi nan «u> av an atari 

WHO DARES WINS Commodore 64 K. Woughtin £S.9S 

C*an promotion mrqugr) ine i**i w<n your inafp qwtA tact«nt |f*OOI>ng Unr) to rjrrwuif 
dnparalr (Frromh But armar moohng tnr nofugr-t brings pemofcin OemoramatHKi and 
dtyjrate 

AUEN RESCUE Comrreodore 64. KMougrrtlrt £5.95 

Tatev mmuiri to If am bm a nfenne to nu-Her *n a fuiarrJoui revue mnvon T'rrangL 
ajdgrrnent and dull are lened to ejarrmei 

PROTEANS B6C 32 K D Hoifclni ..,.-..,.. £6.95 

In our humble or*r*cm Ihe UUeu rappcri moit aOdMrve ongnal lOKSurfut luprrwnc 
art jot game For Ine BBC 

SUBKILLERBBC32K D Reg*n £6 95 

I H tunt grapncT and hjprrtcr^t br*ng xrr earajement of the Submarine Hurler Ukff drama 
to your urern Brtf ajbroubnt evefl 

GOLF Spectrum I6K. O. Johnson £4.95 

W bat* and etuoy a peaceful game Of Cjorf w«POut me trouble and exprrtw Guirantecd 
to grwe houri. of enjoyment All poiuHe featurei ncluding ««e tpKUton 

GALACTI ANS Spectrum 16K O. Turner £5.95 

No W«ut game* pt*y*f uxmld tie wrtnout tfni vet won of an old f*vour«e Eacetfenc 
grapfK l jnd tOund fc dif lerenc permutatom of game 

ROAD TOAD Specvumiw K £4.95 

Jean Toady on ha hectH journey to the LHy Padi An emeHrnl fiai feKurt «nwm 

STAR TREK 3000 Spectrum 4BK M.FIorey .....f4.9S 

■Dldfy go vmete ever/onei been before fhfngororrhfr 

INVADERS Spectrum I «X. D. Heeun £4 .95 

An eacelfent ieruon of trie onrarujl and lor many prop* wU the DeK arcade garnc ever 

J AWZ Spectrum 16K £4,95 

Get your teeth rta the Utt of ndrafig If* depth* of hoarcH of marauding ifurti and giant 
JrWyrari 

MILLIE-BUG Cc*ninc*ter«64.K.Mought»n £595 

A ne* and FaChful wucm Commooore t* rjwneri have an been wafting ten 

HARD CHEESE 1 6K Spectrum. P- Johnson * E. F*rrell - . - £4.95 

iteer farmer &** around the tieic *i rwt ferkmawr *«h cr ophopperv tjum ton. <r*e1r. 
beef and letfua aoonxide A novel jnd VeVy luH feature game for rnppenidat rnarftJU 

MUNCHMAN Spectrum 1 6K. D. BVewtter £4.9$ 

A relfetnigry frmey powyn prfl paded popular program wtn Ji muCn ipa 4 H or* original 



JUrV BLY Spectrum 4«K. D. Priestley ...£6.95 

A brand new origmal JU gngmg ill icrotlmg mpercolour animated murbpetur* puttH 
program A mafttrpiew Of >ngeru«y w keep the i*rho* farMy amuied abioiprd and 
rndvjaed unci The nriO Hue moon PlUi Ine chantr to earn mrxr than ( I VO «r*ti VOU* 
(ontnbution to JUUBLV f due out <n ' W4 ihu game MUfT br raieU n (he bTM value for 

money program a* IM] 



Pleaic vend me the toi tow ing g*m« 



Trade enquiries wefcoenc 

AyaSlafale tOOrS. W.H. SMTTH. LASKY'S. SPECTRUM, JOHN MEMZIE^ 
and good computer tcrhwar* RodrJAs ttiraugntxit the UK. 

Please wnd your compreted order form to; 



ADDRESS. 



I encloie cheqoe7PO f or E _ 



POST CODE 



or charge my AccHs/Barciayca/d account number 

I I I I I i Please add 5Qp to toca \ order 



DK Tronlcs Ltd, Unit 6, Shlr* Hill IndtArUI Estate, 

Saffron Walden, Essex C81 f 3 AQ. 

Telephone: (0799) 26 J50 {24 hrsj 5 lines 



SOFTWARE FILE. 



iconttnaed from page 2231 

•AH DATA b*,4t,W.$C fC W.4C.JF ^ti 
iW WiTfl • REM Cf(D OF MTfi ♦•*•••«•*•• 
5» POKEK1K FOVE52 IK FEH fPOTECT 
.C"PE •*♦*»*»••••*•••*••»•«**•••••»•• 

*99 L-3S93* M»fl TT-0 

teae pem m 

ie;o [FR»--t-Txriiiae 

tCH ftafl&J h| -4: 
1£>*B 5r-**Z 'BlvHTl -I 



10W *£• • i • • • 

t»0 IFm 00*H>235T>CN|*96 

107Q K*EL •■> 

1000 L-L+S OOTO10O0 

lfl» F*IHT'£ 

■ feOOVO*4S)f # 00*04 OtOeO***** 

1100 II i 

PUH ftK*-TEft, - EMU PEN 
1103 rt-40MO f£H STrPT L-X-- 

SPECIFIED M0S&7 •»«♦»•#..••.... 
lilt) FOR I-iTiiiJ 
11*0 rwi P£AI' ■ -> 

ll» 8-»SC MIPI ■ j 
IJJ5 IF *-» TKW 1-1 



- -.r-EGt 70 !". >i. ***♦•♦♦ 

i I r>> " » 
11V) »»f**l 
lied HsXTA 

ure potent sen t 

UW ««mmO 
.* 1 1 SO NE ' ' 

•••• 130B »Tft»POE 

li£0 *Tfl"00t0' 

1230 »T«-t •- 

.Toor sv*.;.- 



M 



:n*»t- 



-IrfT- 






&#i 



Secret file 

M Shackteton. 

Cotnnghsm. 

Humberside 

ON mom t OMl'l 1 1 kn when you type CLoad 

or its equivalent the compuier will load the 

Tim program il tomes across on tape and 

display ilic lilc name. However, on rhc Otic 

the file name is not displayed This can he 



very annoying if you forget a file and 
apparently, iberc i\ no way to find out. Thin 
program, which occupies well under IK and 
can be Newcd after running) pros ides a way oi 
displaying i he name of J file type in I be 
Basic program, run and New then type 
CALL * 4Q0 
l : fiwn now oo any program loaded wiih 
t load will have us name displayed at the top 
of the screen in the reserved line afier loading. 



10 P-04OO 

20 READ A»t IF AS--E.ND" THEN END 

30 C-VALt -•-♦*»» i POKE P,C 

40 P-f>*liGQT020 

30 DATA 7B,A2.OD.8t,2«?,O2,A2,04, 

BE , 2A , 02 , S6 , 60 , 4B , BA , 4B * 9fl , 48 

,A2,B0 
AO DATA B4,0O,A2,BB,Bi,O),A2,4B, 

86,02, A2, OO, B6, 03„A0 4 OF ,B1 ,02 

,91.00 
70 DATA 88,DO,F9.6B,^B.6B.AA.&6, 

4C,Oa,EC,"END" 



J*' 



wm 



Earhole 

Trevor Cook, 
Ooofe. 

North Humbefstde. 
\s SiMi I RIM OWNERS will be aware from 
their manuals, ihe cat socket tif the computer 
is read via bii 6 oflrO perl 2 VI decimal. The 
ram contain* j short machine-code 
rOUtlnc which returns in the RC register pair, 
ii value which is proportional to the frequency 
of any tone which may be present ai the ear 
socket The ruuiine is designed &o thai if no 
lone il prtNcnt, a value of «ro will be 
returned, I have located the routine al 326QO 
dec Le . the sun of the user -de finable graphics 
area on the I6K Sped rum, Owners ol 18 K 
machines will need to modify ihis accordingly 
hy modilyine line JOO. 

Now ihat wc have the means 10 obtain a tone 
value, what tan we do with n- There are many 
ponibifilics hut, to explore ium one, the 
un Soundman allows us to graphically 
represent tones applied to the e-ir Mvkci, and 
jlilnuiuh written in Bttk it is still fasl enough 
ro he juL'puWf. 

Type in and save the program with 
SAVE SOUNOSCAN' UNI 100 

\hi running, ihree modes of display will be 
available. These lotion the form of normal 
jrapk hislopram-iypc }traph, and a poJttt-plM 
display. Options csisl within ihc program lo 
Iree/e jnd FtStlfl the display, and to change 

jispLv mode. 

Lines 25(1^275 contiiLn the main rimiine, 
wiih the l*i*rSR Tone in line 2W collevi- 
ing the tone value from the machine-tode 
routine. Lines 41)0-4111 Polte ihe machine eodf 
into memory t'sers of 4BK machines should 
change I me 405 to I.el Tone - I'SR 
they wish u> assign ihe machine code to ihe 
ITMi area of memory. This has ihe advantage 
(hat a change of RAMiop is tioi necessary. 

Ideally, j CaMCNC recorder wiih some lorm 
<i monitoring facility should be used M -i 
enables the tOCl 10 liMen It) ihe cassette output 
and observe |he display simullaneOuslv, which 
reinfbfnef ihe effects of ihe program. The 
display is particularly impressive if used in 
Mode I, i.e., normal graph mode using a 
iiuisu. cassette vontauung a pronuneni [> 
viH.~alist as ihe sound source. 



100 


REM SOUNDSCANNER 


101 


REM T.COOK 1963 


102 


DEF FN A(L>-1+INT (.3+L/30) 


103 


BO SUB 405 


lOS 


GO TO 200 


1 10 


DRAW INK FN A (L> j X-N,-C+Yi LET X-Ni LET Y»L»f RET 


URN 




120 


DRAM INK FN A<L>fO,-Li RETURN 


200 


PAPER Os INK 7i BRIGHT 1: CLS 


210 


PRINT AT l,9t INVERSE 1 j "SOUND SCANNER" 


215 


PRINT AT 3 f li**This program gives a graphical rep 


resentation of Audio signals applied to th« Spectrum's 


"EAR* socket-" 


220 


PRINT AT 8, If" Insert a cassette (e.g music- cas 


sette) .start tape and select one of the following opt 


i oris: 


pi 


229 


PRINT AT 13,8j"l) NORMAL QRAPM"fAT 15,B;"2> BLOCK 


GRAPH"; AT 17 f B|"3> DOT GRAPH" 


230 


INPUT INVERSE 1 5 "ENTER OPTION U~3» "fO* IF (Kl 


R 0>3 THEN 60 TO 230 


2SO 


CLS t PRINT AT 0,7| INVERSE U" SPACE* TO FREEZE" 


j LET I*-"": LET X-Oi LET Y«0 


2S5 


FDR N-0 TO 255 STEP 4: LET L=USR TONE* PLOT N f L 


260 


IF Q<3 THEN GO SUB 10O+<Q*lO) 


265 


LET I*»INKEY*t IF I*-" " THEN GO TO 300 


270 


NEXT N 


275 


GO TO 250 


300 


PRINT AT 0,5i INVERSE 1 ; "M=MENU R-REST«**T E-END 


"I PAUSE O 


305 


LET I#-INKEYfi IF I*-"M" THEN RUN 


310 


IF I»»"R" THEN BO TO 270 


315 


IF I»-"E M THEN STOP 


320 


GO TO 300 


40O 


DATA 1 ,0,255, 17,0,0,219,254,203, 1 19,32, 1 ,19, 16,24 


7,66, 


75,201 


405 


LET T0NE-32600 


410 


FOR N=TONE TO TONE+17i READ Di POKE N,D: NEXT Ni 


RETURN 



JM 



Acetrace 

Aian Wagstaff, 
Richmond, 
Nofth Yorkshire 
Eli HI \K1 nro assembly-langiuge programs 
for the KB*." Micro. They can tome in very 
handy when laced wuh hugs in long Basse 
programs 
The Trace facility *«n the BBt! Micro is 



useful but there arc oocwaws when one is 
lei I gating al .1 v^reenlul of line numbers, 
obscuring ihe program dispUv and lotv ing one 
reding j irifle urn phissed. 

Acetrace displays ihe Basic line number 
which is jKml to be evcuicd itt ihe top letr 
hand cornei ol the screen ITiere is tbea > 
pause for jbvui .' S seconds, which can be cut 
shori by prasatnj l key. then ihe hue is 

I continued un twxr page! 



YOUfl COMPUTER DECEMBER 19S 3 22% 



f continued from prowous page) 

The assembly language program produces 
machine code Marling at address DO! hex h 
■bo seis up function key 9 to enable Oswrch to 
be vectored 10 ihe machine code and also 
twitch i*n the Tract facility. 

To use Acer race, enter and run the listing, 
Then enter New and load in the Basic 
program io be debugged. Pro* I unci ion key 9 
then run the Basse program, When you have 
s«n enough, press Kfeak followed by Old. 
This restore* she normal Oswrch vector. 
Acctratc is still available by pressing function 
key 9 provided this has noi been ahered 

Dymars produces a machine-code routine 
starting at 1)01 hex. This code, when called* 
I the names of all dynamic variables used 
by a Basic program. 

To use it, enter the listing and run it. Then 
enter and run ihe Basic program, F.nienng 

CALL CrDOl 
will list ihe Hjsk programs variables. 



SOFTWARE FILE. 



30REH ACETRACE 

40REM A.WA6STAFF 

1983 

SOd*mt c h-tdE0A4 

60o5byt*-*tFFF4 

70F0R FX-0 TO i 

80PX-&D01 

90 COPT FX»2 

ioosta n 

llOCrtP #91 
120BNE «p*CV 
130LDA Wl 
140STA M+l 
1 SOL DA #134 
160JSR oabyte 
170STK H+3 
h »STY M*4 
190LDA 11117 
ZOOJSR osbyte 
210TXA 
220 AMD #32 
230BE0 tab 
240LDA Ml 



250STA M+2 
260LDA 44 
270JSR osweh 
280. tab 
290LDA #31 
300J5R oswrch 
310LDA #0 
320JSR oswrch 
330JSR QfHrch 
34OBE0 Arte 
T50 . space 
3AOCHR #32 
370BNE irac 
3BOLDA M+l 
390BEO irtc 
400LDA #0 
4106TA M+l 
420LDA #129 
430LDX #255 
440LDY #0 
4SOJSR Mbyte 
460LDA #31 
470JSR oswrch 



4SOLDA PI+3 

490 J SR oswrch 

500L.DA M+4 

510J8R oswrch 

520LDA M+2 

3 50BFQ .-era 

540LDA #5 

550 J SR oswrch 

560LDA #0 

570STA M+2 

580, Z«r* 

590LDA #0 

600BE0 fini 

610.*rec 

&20LDA M 

630 .fin* 

640JMP oswrch 

6501 

6cVOM-PX 

670NEXT 

6B0*KEY9?I«20E- 1 1 ?* 

2of-i*d;mtrace onim 



Dragon Arnsr 



■ 1 1 rc» i 



1 KlIMt 

[, L*I|4-C 

JO If I 

SO *■* •*• BMH *t 

Mi FrUM n,l,KMI)i|,« 

SO M-JIlT|linr...t 

•4 Fl».JrtTtTT linl 

TO HHitfll 

WO IF B»»-C- n*M *CLIHLC> 

» tf **--.- r«jim|ii,ci>n ]..(»-»»i' 

I ID M>KFI.FiJ 

ik> If d4--l-t>« !.->*■— 
i*p 1* Br-'0-r*mm w> 

14* IF »-l"4li <.^S*#»* 

ISO IF »>'iT|0 K>«M<IL-II 

14* IF Ni-t'lHIl P-l 

I TO JF Of-U-I)*! 9-0 

L»> IF b*-v -j>*m cincunci ( rv >,»,CC 
1*1 i' D4'-i-r»«h fh»i 

JOO IF DV--Z-tl.CN ppo 

ilO If o».-i-r^n Pffl 

139 IF »t>>4>[KN n—* 

1 w '» 1MB "*m"r*.py*i i,a,a 

.-(h-i tr «-i*» a* n-i** ik* ct-01 
t't> i> ce>* *»*■ cc-o 

.-*:. BtH'C - HTM ICC ) 

7*0 IF L>I*HB B-l TWH l ! NT ■ F* ,F. . , FW T 



Sn 
JiU 
SIS 



HO 
JFO 



400 
*IQ 
•?» 

4JD 



4f« < iui m.iiEmii «c 

4(4 torota 

WO IF t4"*(,*nO*»lOT*»4 T *lO« 

*js HI IIMIliP **»-■?■*»( M 

SIO MB FW.I . 1CF4HII ,4C 

914 If tv-L-rtcn Ftl.1 

Ul 4UH0DH 



IF L»l «HB D"*i tHEH I I** id ,CYl - IFJ ,F*I ,F 

IT *-i tnw 1. i*iti,cTi ifj.pir,nr'.» 

MMM 

**liri-i*vt an ldh i«/li- 

i*"twiri»i' w*~--*m* Ho 
nnA*MFi ar fiu'iM 

IF F*< -fl'MO ff*. -b-THTH *» 

iium 

ir i-n-g a* 1 1t*H t* *- *L Q t 

IF FW-3 04 * !**■ «■»;»» 

CM 

ra i m 1 fMi , -«I «,' «in» ' 

•orancpi 

if «4--i- n« ?oo 

■ *• llFtTI 

ir if--*- fNTii mufFix.'Mvlni -<■>* 

IF ■•---?•«■■ 440 



■« ■ IMI0DI ♦ 

W EOTfii. ■ 



Auto line number 



J?3$f:i!)Zl 



North. 
Rtptef, 
DttbY. 

Till si pfUXiftAMfl produce automatic line 
numbering; lot cither the 48K, or |6K 
trurrt. The machine-code program is 



Ntirrcd above RAMtop and is called auto- 
maticalh b\ duemng ihi- imcrmpi ^huh 
occurs every 20ms. 

The rO&nraxg system variabks arc used in 
the pnt^ram 
ECHO E, LAST K. FLAGS, E PPC and KSTATE 

\ ( ravksum is useJ in l-Jl)i pmj;rjnl tdTA'jrn 
ir there is an error in the Dau lines. It rhe 
error-m-data messajie appears when the 
program is run then urdully check through 
[beSC lines correcting jny errt«r>. and run [he 
program again, until the instructions appear. 

To turn the program on: 

RAISI0OM1SE USR 661 21 
or J2H0 Tor 16K mathines, Pressinis Emcf 
again should produce 00)0 for the first .jnc 
number Mat any stage you wish 10 alter the 
ucfcl tine number then delete the number 
pnulcd and type in the nexl number required 
aflef which auiomauc numbering will tnn- 
tinue from this line, The step between line 
numbers t an be altered by Toking the required 
value into 65192 - 1241 J lor IftK 



If the I : .n1er key is held down the routine 
will rapidly run through the line numbers. 
This can be used if you warn to delete pari ul j 
program, hv eniermg the llrsi line number to 
he deleted and simply holding Enter down 
until ihc bsi number to be deleted is reached 

If the line number exceeds 9999 a colon — : 
- wilt be pt mted in the first digit position to 
warn that the line cannot be entered. 

To turn the routine oil delete the last 
tconnnued on page 231 1 



Am*® 



Artist 

R Biflmgham, 
Upper Bmgot, 
Gwynedd. 

PHIS ft \ 1 i>Ml'l J* All n Artist program 
jllowmg use of all ihe l>ragun*s graphics 
modes and all colours ihe picrurcs can be 
Saved or Loaded from tape under program 
control. The io>sluk moves the Hashing point 
cursor around the screen. 
Control keys 

C Clears screen to present colour 

S Changes Hi res screen or 1 

17 3 4 Cbooses resoluoon mode 
Sets a fiked reference point. 

L Draws line between the lasi cursor 

posJttcn and the present one. 
Drew* Cursors with L 

u rs the opposite of and as Undrew 

wbich jotns a" cursor ocms with the 

Hixocl point from 

Bok sriBT native to line L draws 

bones to last point etc. 

Drews circle centre and radius 10 

present point m present colour 
Fire button Change* colour (0 81 
P Part area in colour up to border of 

present colour 
Output .input screens 10 tap. 



B 



4uro A** 16K 






.1-- 






..... 



M&vj+m^oi 



1*'. 



AutokneWK 









* -i 




?- :i i. :«* m 



* m A 



: : . 




. J "I « s 
















1 - = " 



X t _ 



i 



is* ., 

- 

. .,? , s- ;-: if: i 






■i, i.i 



F. z ■ 






aa 






..'A 






226 y&JR COMPUTER WCEMB€ni983 



J 



Add the professional touch 



to your 




starter pac 




£34,95 iikivat 
Memotech Keyboard 

The Memotech plug-in Keyboard plus buffer pack 
takes the effort out of data entry for ZX81 users. The 
Keyboard has a light professional touch and is housed 
in an elegant aluminium case, The simple plug-in 
system means that you are not obliged to open up 
your ZX81, use a soldering iron or invalidate your 
ZXai warranty. 

ey board Buffer Pak 

e Buffer Pak performs a "housekeeping" function 
or the Keyboard, interfacing directly with the port 
of yourZXSl. 




The complete range * 

B32M Interlace 

The RS232 u in all purpose interface 
which allows ih« ZX91 not only lo 
output 10 suitable serial printers, but 
tnh Link up With numerous lypes at 
peripheral or even other placeman. 
The Enter (itf has l»o main model til 
operation: BASIC mode allows you lo 
us* the rang* el f unctions supplied in 
lis* RS232 EPROM wl! h In an ordinary 
BASIC program, anil TERMINAL 
mode allows you to use you* 2XB I as 

a Terminal lo another pronator . The 
EPROM functions olfered permit th* 
U«*r Intend, receive arid convert 
bytes bclween ZXBt rode and ASCII 
as well ai check the status of 
numerous control (1*9*, deceived pr 
transmitted date ean appear 
thsvnltaneously on the screen, and 
received data may be printed 
U m ultaneoutly . 
i3§ « i»c V.A T. 



i Caalmka i/¥ 
The BASIC commands W HINT, LUST 
■ui'1 f "OP V are used la print on any 
CENTRONICS type printer. All ASCII 
character* ar* generated and 

MEMOTECH 



translation lakes plate automatically 

ttfatn the park. Rev* rse rapitals give 
lower rate Additional fa rtllue* allow 
high resolution printing 
I24.M IBC VAT 

Memopak HR(, 

Thlj pack breaki dawn the const rainis 
imposed by operating at the ZX8 1 
character level and allows high 
dellnltjon displays to be generated. 
All 24£ x 192 individual pl*el* can be 
cuntrpUed using aim pie commandt. 

ai>d lot OsvlH in toftware enable* the 

user to work Interactively at the dot, 

line, character, Mock and page level!. 
EM.BSLiir V.A.T. 

Ur*jocak 

The screen display behave* at a 
window' on a tars* theel of paper on 
wh.trh t table of numbers it laid out. 
The ma iimutn all* of the tabic b 
determined by Use memory capacity, 
and with t Mrmopak MX a table of 
up in 7000 numbers with up to 250 
rowa or W columns can be tpecified. 
OTMtnc VAT. 



upper and lower case and single and 

double cute characters. 

£2t.*0mc V.A.T. 

sirmopak Memory Eilensioos 

For those just setting oui on the toed 

to ret! computing, these pack* 

transform the 2X8 I 1mm a toy to a 

powerful computer, Palt storage, 

■satttsawi i 

displays! 

>> 1 das' MreaWssi mi: nemts*! 

l«f Metaopak £24.H 

12h UemopakU4.es 

UK Mrmopak ll«U 

Prices inclusive of V.A-T. 

Memopaks are available tl main 

branch** of W H Smith and John 



I complex 
i. further 



All pnres are inclusive of V.A-T*, 
pottage and packing. 

To Order. Send your Name, Address 

Memo pakt required, plus a 
Cheque ' Postal Order/ 1 
Access .'Barclay card number 
(please title which) to: Vtemoleck 
limited. Station Lane Industrial 
Eslale, Witney. Oion. OXt MX. 

telephone vviioey trn. 

We want you lo be completely 
taliaf led with your Mcmopsk - ell 
our products carry a 1 4 day money 
beck guarantee. 



i United 
i Lane Industrial f* 
Wllney, Oran, (l\l BBX. 
Telephone Witney 1*}? 



Mtssvattil 

Text la first arranged In 32 charade/- 
hnet lor the screen with 
comprehensive editing facilities. On 
output the titer simply choose* the 
line length required for printing and 
the system doe* the rett. Uted with 
Ihe Memopak Centronics Interface, 
Use Word Processor make* available 
printout with 80 character llnea. 



ZM Assembler 

The Assembler allows you tlrst to 
code end edit « source program In Ihe 
ZJ0 language, and then assemble It 
tnto machine code. You can now wriie 
I lekible and economic progrtsn*. The 
Editor mode allows you to code 
directly in the right formal, 
manipulate individual line* and 
contra] the euct placing of source 
arul machine code- Routine* may 
be totrged or fatted (even lo a 
commercial printer using our 
Centronics Interface!. The 
ateembtar mode handle* all 
standard 760 mnemonics, 
numbers in be* or decimal, 
comment* and user-selected labels. 
£»,Minc, V.A.T. 



6BC32K 
UJBKtLLCm 




Spectrum 
STAR TREK 




VIC 20 

WOODWORM 

WHACKER 



conwnodo™ (jj\ 

ALIEN 
RESCUE 




BBC 32 K 







Commodore 



ALIEN RESCUE 



BBC 3ZK 
SUPER FRUITS 




v*c zo 

THE SUCKER 
PUZZLE 




Commodore 

64 

THE SLICKER 

PUZZLE 




Spectrum 
TROM 





Spectrum 

200-3 


3 


Lit 


1 


* eKiromcs| 




^jj Spectrum 

^^ 2*01 

A SPACE ODDITY 







BBC 32 K 






di ironies 



Spectrum / 



BBC 12K 
THE SUCKER 

PUZZLE 




* ironic s I 

Spectrum 
THE SUCKER 

PUZZLE 





Commodwe 
64 
WHO DARES WINS 



Spectrum 
GOLF 



Spectrum 
MUNCH MAN 




Spectrum 




ipectrum 
SPEEO DUEL 




Spectrum 
APPLE JAM 



Spectrum 






Spectrum 
PERSONAL 

FINANCE 



Spectrum / 

Sound F X 



BOOK 



.trotves 



Spec if um 
SOUND FX 



Spectrum / 

\J\dC% 






- 



Spectrum 
MAZIACS 






TANK 



Spectrum 
HARD CHEESE 



Spectrum 
METEOROIDS 




LWiMlife.U;tWH 




«a * * * ni 51 ! 








lip rint; id 

iCh l,de;Ld ( 

. wmWtut tod* i . 
drwutmbkr 

SlTfillS 





Spectrum 



ZXBl 
ID GRAND PRIX 



Spectrum 
DfSTRON 



-L 



r'y -Copy -»■* 
i nc 
tnuence -u 
De ictt -P t i 



VpecUUJrt 

2JCED 



cti'um / 

ChUdCld ( 
e , 4.' 



(iVi, start 

,iUb 5, Ld I 

*3»cWri? «d*?_ 

6 fir 

02 * 



Spectrum 




Spectrum 
FRUIT MACHINE 




Commodore 
Mi 




ZX8I 
IMD 



Spectrum / 

GOLD 



INE 




Spectrum 
GOLDMINE 



SpeCl'Urn 
SPAWN OF EVIL 







SDCCliLllll / 








•VifmM T * 




^^^^^^^^^^^^^ 




Spectrum 
no AD TOAD 




Commodore 



DICTATOR 



SiKCIrum / 

Dictator 




Wm 








Spectrum 

OICTATOR 



32 K 






y 



-\i |SJ 



S8C 3*K 

DICTATOR 




cftfrohfcs 



BBC 32K 
PROTEANSE 




Speci'um 

JAWZ 



Spectrum 
INVADERS 



ZX8I 
METEOR STORM 



Spectrum 
CENT! BUG 




<Kfporlcs 



BBC UK 
TRAMrX 




Spectrum 
JUMRLV 



ZXS1 m 

|as**r 



i>yjj,jLr^uu 



"* cjflf^fi 



■P- 2X81 

EAST 




Spectrum 
GALACTIANS 



cft-'frooKSi 



See page 224 lor further do I ads and order form 



Choosing which game to buy from the mountain available is a difficult job, 

especially when everyone claims to produce the best on the market. But how can 

you tell the best from the rest?. To help you decide, read on. . . , 




THE DUNGEON MASTER 



L el your Spec I rum be you r gu ide in a rota I ry new 
dimension m adventures in ihe true spirit of 
if adit ions! role playing gurnet when* YOU design 
the scenario 

"I haw* been a Dungeons and Dragons fan lot 
several years The package provide* excellent 
entertainment For all fan* of Ihe cults and should 
prove a good introduction io ihe gam*" 

-.Sinclair user 
Highly recommended lof its versality originality 
md quality Defmalely *el> worih obtaining" 

. ZX Computing 

ZX Spa cl rum 48K £7. SO 

Written by Graham Stafford 




INVASION OF THE 
BODY SNATCHAS! 



much much more combine fo produce the 
ultima le space game 1 

ZX Spectrum 48K £8 50 

Wnilen by Simon BrafTel and Neil M otters head 



Please tend SAE for our latesi catalogue and 
deiaiis of our forthcoming sol I ware 
Catalogue FREE with every order. P&P included 
Please add CO. SO per Item for oversees order* 
Please make cheques'PO s payable to: 
CRYSTAL COMPUTING A 

2 ASHTON WAY 
EAST KERHINGTON 
SUNDERLAND SR3 3RX 



ADDRESS 



What the 
real critics say. . . , 

Very rarely have 
software titles produced 
such universal acclaim 
as 'Halls ot the Things' 

and The Dungeon 

Master'. Now. with three 

brand new programs, 

Crystal continues to set 

the standard of software 

excellence The 

difference is obvious • 

the choice is yours: 

The Best or The Rest. 




r 



HALLS OF THE THINGS 

A stunning multi-level mare 'arcade adventure' 

'Excellent and dangerously addictive ■ could 
the Spectrum games scene 
f Sinclair User 

Spectacular • One of the best games I've seen, 
tinely balanced between simplicity and 
addict Iveness - superb graphics and colour - I 
CANT RECOMMEND IT HIGHLY ENOUGH" 

pQpular Computing Weekly 

ZX Spectrum 40K £7. SO 

Written by Neil Moitershead. Simon Braltel and 

Martin Horsley- 














THE ISLAND 

The ultima I* let: of logic and deduction 1 Can you 
solve the hidden mysteries of the South Pacific 
Island on which you ha ye been Stranded - and 
escape alive 1 A brilliant classic Style adventure 
game to fscinate and frustrate you for months' 

ZK Spectrum 4SK £7 50 

Wntien by Martin H Smith 





Please Supply: 

Invasion of the Body Snatchat O 

Rommel's Revenge □ The Island D 

Hails of the Things □ The Dungeon Master □ 

Catalogue (please enclose SAE Sin * 9*tv> D 
enclose eheaue/PO for 



ROMMEUS REVENGE 

A tmtham mt**pr«t»ttofi o* the mow ¥i*ua% 
siunmng arcade game of all time Superb high 
resolution 3D graphics wtlh lull perspective plus 
a host ol new and exciting features make 
Rommel's Revenge the most speciacular game 
ever produced for your Spectrum! 

ZX Spectrum 4SK £6 50 

Wnlien by Martin Horsley 



DEALERS-' For amiaitt ot our e«?e»ent 
dealer discounts (Including export) 
ring Chris Clarke on 061-205 6S03 

PROGRAMMERS' Written any good 
software 9 send it lo us for evaluation and 
details of Our excellent royalty scheme 



NAME 



icontmued ftatft p&QQ 236} 

number printed and type 

RANDOMISE USR 65111 
Of ^IWlur I&K. This should ali* ay* be done 
before using any other program which uses 
mierrupls. 
ML hen the proprarri has been successfully 



SOFTWARE RLE. 



run ii can be Saved by: 
SAVE AUTO L1N£ 4BK" CO0£ 66UU57 



or 



SAVE AUTO LINE 16K ' CODE 32330J57 
I his can then be quickly loaded when 
required, but remember to set RAMlop Jirsl 
to protect the program. Alternatively, the 



program can be loaded from the Basic listing, 
and after turning on the routine the Basic lines 
can be quickly removed by the method 
described. Incident ally, it is possible to have 
program names longer than ID characters by 
using keywords in the name. These are only 
available in (he extended mode. 



Stringdump 



G Jones. 
Wiltshire 



yjiteio 



STRiNdhiMi' IS a nort-rclocatabk machine- 
code routine which will print out ill the string 
variables currently used by the Wc-20, excepi 
those stored in arrays. It is loaded by the Basic 
loader program into memory starting at 
decimal location 7424 — just below the screen 
memory — and is protected from the Basic 
program and us variables by lowering the top 
of memory poinier. Alier ihc machine code 
has been loaded, the Basic loader will New 
ilself. The routine may then be calked by SYS 
7424 when needed. 
lines 10 to 50 set up a two-byte poinier io 
Co the end of program/start of variables 
hv Poking 2^t, Peck (,45) and Poking 252, 
Peck, (46) — in machine code. Line* 60 to 2tt> 
check for a string variable by searching 
through memory to find a valid sequence of 
characters corresponding to the name of a 



2 Fff-E'itrSTS-B PRIHT^af" 

PS JTP1H6DUMP" P*IHT" " l*lNT"<ilB(LOflI>lfiG rt/Cj- 

5 FGKE55..2M P0KEK,28 R0*E7423,e 

28 VamXZ, ft, 22,32, 106, 29, 169,6.101 .?1 . ITS. 244, 201,4 1-144. 240*133-233, «>IW.^ 

160. S 

iO DftTA201 >12S, 144. 225- 291. 2i&.l?6, 225,233. 127. t33. 254 

*0 DRTH163* 253, 32, 122, 242. J63. 254. 32> 122-242. 169.3S, 32, 122,242, 16S. 61, 32, 122,24 

50 DftTft32, 1 I?. 2S, ISO.i . 32,95. 23, 16?. 13, 32, 122 

i& Wrft2-«2. I£5. 232. 19r, 4$, ]44. 6 163-251,19? 4'. 144, 176. 76, 103. +2S 

r« l»rfll?2, 0, 240,6, 32, 106, 23, 136,209, 23«. 96 

39 DMTHlt.2,c>. let. ^31,238, 231. 288. 2-230, 252. 96 

*0 CflTm32.]0fi^,l68,l32,e,32, lOti- 23, 133,23^,32,196, 29, 133.234.164. 0,132, 0.200, 
1,96 
IM DHTH 160,0, 1?7,233, 200, 32, 122,242, 136, 0,144, 246, 32, 225, :53, 240, l,K,r«, 103, 2 

2S.96 
\ii fC*rR*7424T0r305 REOBD fȣRD NEXT 
us -*\t.' "mnmaamam *ir * key hhcn REsDrar 

117 :<ET*f !Fft**-"THEHlir 

120 PPINT"^ &VS?424 TO USE, ' NEW 



and printing ihcrtl, followed by "I"". 
Control then passes to the routine String- 
prim which calculates the start address of the 
string and prints it, the length of which is 
determined by the contents of the Y register. 
After i he siring is printed, a carriage return is 
printed to move down a tine and then a check 
is made to ensure that the end of variables 
address has not been reached. 



Ifn has, then the program is terminated in 
line 430 by jumping luck io Basic Otherwise, 
the whole process of searching for and prim- 
ing a it ring is repeated. Abo included in 
Stringdump is a means to Stop the program at 
will by pressing the stop- key. This is desirable 
when dumping a lot of strings since ihe siring 
you wish to examine may scroll off the top of 
the screen unless the listing can be slopped. 



jAimxz} 



Graffiti 

fan Pifae$ A 

Wheidrske, 

York, 

GRAIN I I Is A program for the 48K Spectrum 

which lets vou write on the screen in any of 

eigh( direct toni- 

The program works by printing your 
message al the bottom of the screen in the 
same colour as the paper so it cannot be seen. 
This part of the screen is now scanned by the 
point command and if this gives a positive 
result the computer lumps in a special pint 
routine depending on which way up you wish 
lo write. 

A problem arises when you wish to ask the 
user a question, you have to write io the l 
and disrupt the display. So two short machine- 
code routines are used to move the screen 
around in memory. 






Q 





^ 




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'• sCt~ zx s^ect ru* 
v zx sptctrut 






O- zx SptCtfut 








*? 



II a 4»IRB 

80 

30 REN © 1*1" F| Uti 1903 

M 

ELEflfl 39099 FOR fidHN 

-0020 REflO • P0P.fi n,a NE-T - 

+s drtr 33 s,!i.r 90, 199, 1 ~* 

5 2* 23" 179.991.30 80 1H 

192 s* i: 301 

?J SO SUB 70B0 

60 50 3U3 0000 

"0 

OS CL3 ORlN' r BO. -ntnuali' 

as -r «a<i».rf ■ if ti« n 

iii'-n them so sue soeo 

ftg I- ■••"" "hEN 80 TO 35 

90 : PRiwr ao • a -t: 

U.0fc Hi- U KflU 



a. I 

160 F-^e r. *0 TO LCW liO*S 

L70 FO* : =C T 

ISO IF POI^T ir..0'»l THEN 90 SU 
6 1000*10** 

190 NE^r ;. nE'T ft 

iOi* PANC-0"IIE J5C A^dCO 

210 SO TO 30 
1000 REM D.otJ 

1010 plot -, return 

1000 PlOT ■ *,-: RSTURn 

1030 Plot m ;-* sETuRw 
lOAO plot n*n+{ ,&*y-r, RETURN 
ioS0 plot i . pe^jPn 

loso PLr" n- -o,n-v+<J pe^. 

10?0 PLOT n-*,p- w BETuPt, 
10*0 PLOT p. -«+p .6-', -', RETURN 

7000 print irarnttt 

PR IN" AT 0.0 OUEP - 



. T£ 5 
-00 -5" it 
II '1 THlr 
_E^ »« 



■ if ta 

'5 loo 



:- 



M 



'np .' 
I" lE' 

: 



ml 20 TnEN SO to 120 
* - • 

.if BAudo-uzE 5012 

150 PRINT RT 01,0 "hP;z 



it XI 

5 t . 

~o;o 

* COP 

1 •■"* 

s \ rDy 
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r-ttn 

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t : ". i e 

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PC INT 
fid tc 

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ni haw 

PRINT 

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Thil Fffijri* 

tnt itftr in 



Th« ttnt- :*- r 
tht ZX-prlnttr ." ~: 
tfiin bts'5 at 

prompt* and iv«! '. - . 

eonputar t^i i ; 

ltd into "•» and c- 

iftti* ", >-t 
t Pten asttd." 

Thtr* aft ? 
\ypu can »'it( ir ar-i 
rr^k l to a ctocH«ii 



£0^0 IF II } OR at B "■ 

~: so io 

9030 PAPER - <=iL it CL9 POP n»0 
TO 100 NE-;T f. i_ET {ivhl ai I 
LS RRNC-OMIZE J5B aOOOO 
90*0 print ao -rti Co cow c " ." _ : 

0> ' 

aose let a«aiNf.s a 

aoeo if if a- or »a '-=• 

_ : 9030 
30?O IN"- -. .«■ CLS FOR n«0 T 

100 NfiXT ' 

seao print bo. eofdtr cocour ■ 

TO -> ■■ 
3090 LfT tf-lNPEV* 
9100 IF •• - OR itu J "0" TrtCI 

TC 9090 
9110 BORDER y«L •■ FOB n nO TO 1 
00 NfiKT fl RETURN 
■S000 CLS PRINT "MENU- i,e* 
• ri4« coiau-f. B.CLtar i;u'- 

"S.COFY t(> Rrint.tr,-- . 5«VE It 
nin to tapt. B.Nont OC tht** 

and rtiuff. . 

9010 PRINT BO ; 3 c - 

ioiS! let *»-rNnEY| if in ■ : = 

kl 1 TNEN 00 TQ 3000 
9030 IF ||i i "MEN FOP 'm? ~Z . 
00 ME XT n 00 *U6 9000 
0O40 IF IB- ■ £- THEN OLS RANDOM 
IZE JSR «.OO00 

9030 IF l|t J 

P xooi; 



CET^C 
PPINT HO. 



PtPtr 2zibu' 



LET ii«lN*Ert 



PPINT GT Oi.O. "' 

r;- 
9060 IF ljl--9" THEN INPUT 

mat t* at rrnc-omie uor *oea; 

S«UE *|90PEENt 
50-0 FOP r. *0 TO 100 '.£ - " P Rfl 

URN ■ 



YOUR COMPUTER. DECEMBER 1 983 231 



JETPAC- 



1 6/48 K ZX Spectrum or 8 K Expanded 
VIC20 




PSSST- 

1 9/48 KZX Spectrum 




TRANZAM- 

1 6 48 L ZX Spectrum 



COOKIE- 

1 6/48 K ZX Spectrum 



LUNARJETMAN- 

48 KZX Spectrum 




LUNARJETMAN -For the 48 K Sinclair ZX Spectrum. 

LUNAR JETMAN - The ULTIMATE Intergalactic GAS (Graphic 
Arcade Simulation} Adventure Space Battle, 

LUNAR JETMAN -Arcade standard, 1 0O% machine code, incredible 
sound effects, amazing smooth high resolution graphics, the totally 
new addictive concept and all those extra features you expect from the 
U LT I MAT E g a m es p e opl e 

Design -The ULTIMATE PLAY THE GAME design team. 

ATICATAC- For the48K Sinclair ZX Spectrum 

ATIC ATAC - The super spooky 3D horror GAS. (Graphic Arcade 

Simulation) Adventure game. 

ATIC ATAC - Arcade standard. 100% machine code, incredible 
sound effects, amazing smooth high resolution graphics, the totally 
new addictive concept and all those extra features you expect from 
the ULTIMATE games people. 

Design -The ULTIMATE PLAY TH E GAME design team 

r»(- Kfl each, including VAT, 
LO.OU first class postage 
and packing within UK. 



These games should be available from 

W. H. SMITHS, SOOTS, JOHN MENZIES. LASKYS, SPECTRUM 

CENTRES, other large department stores and all good major 

software retailers. Alternatively, send the coupon to ULTIMATE 

PLAY THE GAME for immediate dispatch by return, subject 

availability 




Dealer enquiries welcome. 
Phone (0530) 41 1485 

I ULTIMATE PLAY THE GAME is a Trade n.« 
Graphics Ltd , The Green, Ashby de 




ATIC A 

48 KZX Spectrum 



Post this coupon to: 

ULTIMATE PLAY THE GAME, The Green, 

Ashby de la Zouch, Leicestershire LE6 5JU. 

Please rush me the following: 

D LUNAR JETMAN □ TRANZ AM 

COOKIE DJETPAC 

ATIC ATAC DPSSST 

□ JET PAC {8K Expanded VIC 20} 

I enclose cheque/PO for£ 



Name 




Post Code . 



^> 



II u 



I'M- li(» i 



ALTERNATIVE PRIZES 
OF DISK DRIVES OR 
PRINTERS FOR 
WINNERS WHO ALREADY 
OWN CBM64 1 



PLUS 100 RUNNER UP PRIZES 

VIC20/CBM64 OR DRAGON JOYSTICKS 

Galactic Software are giving away all these prizes to the lucky 

number winners, anyone who buys a Galactic Series 2000 game 

before Christmas could win! 

For YOUR chance to win a prize simply fill in the entry form with 

your guess at one of the lucky numbers and send lo us with the 

bottom right corner ol the cassette cover of any Galactic game 

OR send your entry together with your order for any game, 

Our computer has chosen 120 random numbers between 1 and 

10.000, one for each prize. The closest guess to each number 

wins the prize. 

Closes Dec. 24ib 1983. A list of all the winners will be available. 

In the future m a galaxy far. far 
away a second generation of games 

Jwas created. They were time warped B 0tver , tn , 

,^a£h to our dimenston for you to p^ a<Wlctlve arcade 

*b*penence. NOW game> as a mere t^^ 

TheGatacticSenes20O0<shereat last, yauve gotta be fast to 

Games for the VIC 20, Commodore outsvwm the merciless bug 

64 and Dragon 32. eating fish while stealing * 
Ait series 2000 games are only £5,50 each, 

Wor-oy Ojck, gu*rar<ICtt 

Unexp VlC20gBme$ - Keyboard or Joys' 
Commodore 64 games - Joysti iqI ' -^ 





-*- 



Frogqv Incredible anim- 
ation m this rugh 
performance graphics 
experience Frogs, trucks, 
cars, boats, logs, turtles 
and hlyponds all combined 
to give your brain a real 
workout 




Tesi your 
reflexes to the max as you 
attempt to rescue psycho- 
pathic scientists from the 
moon Beware of the 
hazardous space fragments 
in ttHs hectic challenge 



Robot Mouse, tn this 
tutunstic jucade game you 
collect atomic cheese from 
the f ooi of the space maze 

avoiding the mean maf- 
functioning robots who writ 
on contact 




V 


lf»S 


\\\\\\\\\\\W' 


* 


1 





The ultimate 
game t eat u res bram 
power not fire power A 
visually breathtaking 3 
dimensional display with a 
tormenting time factor as 
the 4th dimension, 



Galactic Software 



Tick the 
appropriate box 
n Enclosed is the 
bottom right corner of 
a Galactic cassette cover. 

D Please send me the 
following game{s) 
□ Frogger □ Neutron Zapper 
□ Bug Diver □ 3D Maze 
□ Space Shuttle □ Robot Mouse 
My computer is 
DVIC 20 DCommodore 64 D Dragon 32 
Here is my guess at one of the numbers 



one of the best space ships 
ever built but that's no 
protection in this gataxy 
Your survival depends 
totally on the speed 
p* vour 



I enclose cheque for the sum of £. 



Dealership enquiries contact 04605 

Software. Unit 7. Larcrifield 
Estate, Dowhsh Ford, llmtnster, 
Somerset, TA19 OPF Tel: (04605) 5161 



or my Access no. is I 1 I I i II I I I I I I 111 

Name =__ 

Add ress . . — 

Please send to Galactic Software. Unit 7, Larchfiefd Estate. 
DowJish Ford, llminster. Somerset. TA19 OPF. 



COMPETITION CORNER 



If you want to set a competition for 
Competition Corner, remember that the simplest 
solution should be calculable by a short program 
rather than by any other form of reckoning. 

COMPETITION 



RESULTS 

0* fours coMrerrnoK offered 

Auri's 600XL as prize, Con- 
testants were asked in solve the 
crossword and finish the sentence, 
"I would excel with the new Attri 
rv L ju\c.., M 

Naturally there were dozens of 
"xlellertls' 1 and "atarifics" as in B 
Jeeves" "ihe XLent XL fnakes H 
easy to XI." or S, Brewell's "it's 
atari fie computer with an extra 
large future". These we though) 
were a tittle too obvious. Other 
mines smacked of the world of The 
aiher using (ingle. H. Hullery 
supjicsted, "it's the ideal suitor lor 
student or tutor" while D. Gilbert 
wrote, "for computer tlecds 
Atari leads". 

Many of the most entertaining 
entries were also the most 
irrelevant. C. Harris told us, "I am 
a binary based being from 
Betelgeuse", To wbith the feply 
might be: fascinating but how does 
Atari enter into it? Even more off- 



beam was M, Jasztal"s "Mad frop 
and Englishmen play well on the 
800's son". 

Some entries free- associated 
with abandon. The sequence or 
ideas seemed lo be: XI. 600, rode 
the bUO Light Brigade! This 
produced J. Wilkinson's "the 
noble 600 leads the charge of the 
byte brigade" - 

On a slightly saner note R- Ford 
offered ihe crisp, "my ZX is OK 
but an XL would be KCT; S. 
Crump hoped he would have 
"wintry nights on an Atari — only 
[he sun of an ].C. safari"; and N. 
Milne pointed out thutt "with an 
Antic or two vou miss the queue 
tor chc 6502*'.' 

Choosing from among so many 
entries would have proved tricky 
indeed. Fortunately, Atari itself 
saved us the trouble by exercising 
the right as prize-giver to pick the 
winner, We submitted a shortlist 
of some 20 entries. The company 
awarded the prize to Les lsbtster, 1 





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Mulberry Close, Biggleswade, 
Bedfordshire, who said "its 
expandability takes the growing 
pams out of computing". Navy 
man K Mills came a close second 
with "A tar I am, al sea I am, 
bored I am". There were only a 
few correct answers to October's 
Woodworm puzzle. 
The first picked from the 



competition bag came from 
Andrew Scott, 55 Huntley Grpvc, 
Peterborough. 

The maximum variety Willy the 
Woodworm can enjoy is 39. This 
total can be arrived at by following 
j number ofdilTerenl routes. The 
sequences 9,2,7,12,5,8,3 and 
1,7. 13,9,2 ,6, 11, 4 are two 
possibilities. 




on 
the Adman way 



Tht V>e 20 really can jpwk but oniy if 
vou use an AOM AN SP E E C H 5YN TH E Si SER 
h'i word povw is andiH* at ttwe «i no trt 
vocabulary Yd operation >i iimpte. The 64 
tietnanu of Enolnh speech are Qtw-pro- 

qrarnmtd tO l«I yOU put VOliT OVY" nvorCW 
together at toon « you twitch on. Jutt 

imoqinr program adventure g«mn w.th 
characteri that tan actually talk 1 

Alto * or your V<e 20 there are SK and 

16K RAM PACKS and Ihr? ADMAN 3 
PORT EXPANSION MOTHER BOARD 
With en own designs o' the highest quality 
they vm the b«t value for money around 



The Vic 
speaks out! 



Available from Spectrum, DiKOrts and other m*|or cgmpuifi *cc«*»ory thopt 



Prie*t around ■ 

8W Ram Pack £39.96 

Ifik Ram Pack , £49 9& 

Molh.rboard £19. 9S 

SpMch Svnih«n*r , . £49 95 



To find out mor# aooui iheje producii. why 
not «k# a raaO from our ipweh lynthmier .90 to 
your lo-c*! dealer and ath for it 1 Or poit th« coupon. 

Dipt. C Adman Electronic* Ltd.. Ripon Way . 
Marrogata, N.Yorki, HOI 2AU. Tat. 0423 82642 



Adman Electrontcs Ltd is a membat o< ihe Adam LjittM Group PLC 



Pla^ia »#nd ma mlormaiHon on Ad<nan Vic 20 
AaakBpaattaa 



Niama, 



AddriMv, 



vct^ 



YOU« COMPUTER, OECEMSEB 1983 236 



THE REVOLUTION 
IS HER 

A new and 
incredible 




BY RICHARD TAYLOR 



extension 

to basic 

that lets you write fast moving 

Arcade games 



« FIFTH has the following 

new Commands & functions 



All, Attr, Break Key Disable, Colours, 
Column, Current, Direction, Disable, 
Enable, Erase, Fill, Find, Get, 
Interact, Intparam, Jumps, Large, 
Let, Limit, Line, LMTPARAM, Mask, 
More, No, Object, Print, Put, 
Replace, Remove, Screen, Sound, 
Speed, Status, Temps, Use, Vector, 
Velocity, 



r 



* Personal Computer News 
said*. 

"Fifth provides an excelfent set of 
commands for programming arcade 
type games and makes it easy for 
you to write fast moving games in 
Basic." 

The packages come with an 
extensive manual, a demonstration 
program and the fifth interpreter. 
The commands are entered as 
words into your program and give 
you INTERRUPT, driven, fast, high 
resolution SPRITE graphics without 
losing the simplicity of Basic. 



^ 



238 YOUR COMPUTER DECEMBER 1933 



BuvFiFTHandgga 
City Bomber FREE! 



Just TYPE in this program by 
Richard Taylor with your Fifth 
Interpreter. 



2 rem 

3 ACM 



BOMBER 



by pic hard tsylob • 

EH t G C»L »IPltPHr '63 » 

5 REH lllllltlllMttfMf Mti* 

HEM 

i* HowfOHiit 1000 

20 BRMDCWIZr I'SP O103P 

3M PRMPOMIZE BORDEn 6 

46 PUCR e INVERSE rLASH 

SB BBIGMlf B INK B PR*>EA T 

SB CL5 

"■0 GO SUB V000 

00 GD SUB 0000 

90 LET Mi -0 LET J-l LET fttOC 

f 30 

1*0 CL5 PRINT " MI ', Ml, TAB 
uiC SCORE . ft C r « 

110 PLOT 0.10 3 DBBU iBB,* 

120 LET *-*0B0 REM LIMIT * 

130 LET 4*8800. REM INTERACT 4 

1*0 GO SUB JI0P0 

150 LET h .0 LET vS» REH HOUE 

1*0 LET x<4BS LET *«3B REM MO 

E EntiD < ,i 

170 aa sue 2000 go to i ,>• 

:0d0 LET 1 -» LET b.l?( 

1010 REM HOME Pl+r.*.»,bv[HOBCE p 

ie40 REM ALL BObb\HOOE BObb,*,b 

1039 Be« ENABLE 00* t> 

14*0 REM HOME Enity.t.bvENABLE E 

DI0U 

10St ClS 

1000 FOR 4 ■• TO 7 

1070 PRINT PAPER •; REM FILL 

1000 BEEP .1,4*5 NEXT 4 

j»er p»use j* pop 4-ee to p Mr 

P -1 fl«P .009,4 NEXT * 

1100 rait c -0 to 1000 step 00 

1110 LET 4-10 LET fc--3 LET d»00 

:i£0 «En sound *,b,r,« 

1130 NEXT <r 

11+0 LET *!■' JCWE tiTftl 3c*r* 

1 1E0 LET 1 -0 : LET y »B0 . LET I *4 

LET 4-3 

1160 REM TEMPS M_ ARM 

1170 IF Hi .Scon THEN BO TO 12W 

J1BB LET Hi iSiOrt LET *•- ft N« ■ 

HIBM SCORE" 

us* let i«et let yiee let t- 

0. LET v-1 PRINT INK 1, HEN LA 
ROC 

1400 PAINT 00, FLASH 1/ A 

1010 xr iHKEvict ■ the** go to i? 

10 

1400 IF IWCvicn" OA INMETB- N 
THfN OO TO 1600 



10*0 INPUT "N*w 
1000 IF LAV* t <0 



Lfi/lt"' ",L*** t 
OA L*v*L»3 DA Li 
>INT L«v«l THEN OO TO 144B 



«■ ?Spo? S * 



1000 



IHKEYI PRINT 44 , FLA 
flnetnrr Out" Cy >fvJ 



1010 IF iNhfTIO'" THEN OO TO IP 

10 

1040 XF lNHET*>"lt" OA INKET»-"Y" 

THEN LET S(Dft>l LET i-1 0O T 
100 
1430 IF INKEV*< .*-o" ANC XMKffVf < » 

N r - THEN OO TO 1IH 
1B4* LET •••"OK". I.CT W-IO LET 
'. -44 

1900 CLS 

1000 LET H >0 LET H*0. AEN TEMPS 
vLAROE 
1870 LET 4-3 1 LET >-31. AEN BET 

1080 POP 4*0 TO 41 LET b>(t.«B7 



ISSS BP- 



>AU5E S NEXT 4 
1610 LET **INT iBWtai PAPER * 

BORDER «: CLB BEEP 1,-10 
1**0 OO TO 1010 

4000 LET ifilNKEYI XF •»■"- THE 
N RETURN 
4O10 XF *4- 6' THEN LET v -v * 1 * < L 

*vtua.i. let s«oft>sc«r*-a 

4040 IF **»"7" THEN LET V -V - 1 - t L 

«vli(Si LET !eon.Stor*-l* 



4048 PAINT AT »,£(, JtDri, " 

i«3* IF y<40 TmEN LETT U-B0 

2034 IF y.leO THEN LET V-IOO 

■035 REN HOVE P t*n« . CQturwl Pitnt 

204.0 ir 4*C>"0" THEN RETURN 

2B5B REM USE Bolfc,I 

4000 LET i -J »1 IF i«* THEN LET 

; -1 

4070 REH LET 4 -L XME PUnt^LET b- 

■'ClLLlNN Plinr\LET t-LlHC BHb 

2073 ir r t > 1TB THEN RET DAN 

4000 LET 4-* + 10 LET a - t INT Ht* 

Awfl> > -34» If '3B01 REH M&.UE Bdif 



^000 RETURN 



LET b.IHT IR 
THEN wD TO 3 



FOR C-41 



XF Ht>"Plini' THEN OO TO B0 



J000 rap 4=2 to 3i 

HD410) *1 IF HMDl.B 

04.0 

3010 LET rt-INT IRWtOt 

TO 41 -t» STEP -1 
3040 PRINT AT C.*, INK d. BRIOmT 
RNO, m BEER >00S,C*0S NEXT c 

J000 PRINT RT C.0, INW d, #' 
J04.0 NEXT ■ RETURN 
4000 REM LNTPARAri 
4.010 
00 

4.01S XF H*. criCBU THEN 00 TO ** 
90 

4.040 LET *.17t AEH LET p bCUAAEN 
T hf\USE hf.hvnDUC K». COLUMN hi. 

. .ENABLE hlvUSE r>»,p 

4030 CONTINUE 

4.S00 REM LET C -LIME in|»v 

4.B10 LET o.J.ll.lNT iRNDi&l IF 

t'lxlBI THEN LET O-1S0 

4B4B IF- o f40 THEN LET a >40 

4S3B LET P=3SB REH MOVE *A«*w r P 

, a \. ENROL E tnnu 

IF40 CONTINUE 

-'£00 REH LET y-LI**E PLmnm 

5010 LET p .0 LET y-y.4 JP v>»* 

00 THEN SO TO BOM 

B00B REH HOVE P(*nt .P , ^ENABLE P 

' ini 

S*sm LET Svou»iitf<-l PAXtfT AT 

0, 46, Score, 
S040 BEER . 00B.B0 CONTINUE! 
BB00 LET *«17B LET H-0 REM HQV 
E P I *r*t , fr, •■>, ENABLE Pl«n« 
SS10 REM MOVE EftB >V . k> , » ^ CNROLE C 

3840 REM ALL MBbsHWE BO»t,t>,« 

ENABLE EDib 

3BO0 POKE 43001,0 CL5 

35*0 LET *»- rOu MAUE LANOEO" 

SB50 LET « -4 LET 1*1 LET v -0 

LET y-0 

3B00 PRINT INK 4, REM I SHOE 

3B70 LET Stort.StofttaH 

38BB OO TO 1000 

0000 REM I NT PAR AH 

0010 XF H|i"bOlb" OR l|a'"bORt" T 

HEN DO TO 7000 

6000 IF Kf> pum OA il*"pl»n« 

THEN PORE 03301,0 OO TO 1000 
0030 LET p>0SS LET O >B0 REM MO 
UE inily.p.OstNBBLE fitly 
B040 CONTINUE 
7000 IF ht-"inilV" OA it*"lf1flV 

THEN OO TO 7B00 
700B XF i|>'bOt»" THEN LET h -± 
7V10 LET O>170 AEN LET »»CUAAEh 
T Boit-uSC 6o»fr ,C\LET aaLlNE Bo» 
c LET r -COLUMN BoabNMOUE BOBft.CO 
LUHN Soao , o„ ENABLE BOibtUBC BB1 b 

7000 LET 4 -INT H'BJ LET r»I«T 
if/ft If r >31 THEN LET f -31 
700B IP ^>01 THEN LET a-01 
7030 LET p-q.IMT iFINClB) »1 IF f 
• 41 THEN LET P>01 

;«3f FOA o-n TO 10 STEP -1 PRIti 
T mtW a t f -1+ if -01 " " . RT 0,f." " , 
AT o,r*l-1f "3H . ' BEEP .01,0* 

30 NEKT e 

0*0 FOA .3 -H TO f PRINT AT O , r - 
l.ir-pj. ",AT Q*r J .*' " , AT 0-f*l- 
If-aX.!,** " BEEP .01,0*30 NEXT 
f 
/070 LET icori.5cori.»-iL<y«Hj 

PRINT AT 0,20, StOft,- 
■0B0 CONTINUE 

7300 LET 0-30 REN HOVE Enttu.CO 
LUHN ER00U, OS ENABLE Efiny 
7B10 IF hl.'bcib" THEN LET i .h 
7000 REH LET piCLWREMT BDBbsUSE 
0O0fr,isMOyE BOBb, COLUMN BO0b,OvE 
NABLE BO0bsL>3E BO0b-,F 
7930 CONTJMUE 

0000 LET Ifn'BOHBER LET < -0 

S010 LETT u-0 LET 1-3 LET W -H 
0030 PAINT PAPER B. BHJOKT 1, 



CM, 




REH LftROE 

PLOT B. 100 OAALJ 4BS,0 

LET *l»" R C*»* U(m«" 

LET x»0 LET VJ-4B 
LET 1-1 LET a>4 

REH rEMF3'.,LAROE 

PLOT 0,0 DRflU aSS.B 

DRPU 0,17B DRAU -009. B 

DRAU 0,-170 LET 1-5 

LETT »-6 LET » *B 

LET w>3B LET 4«« FIFTH 

RRlNT INK 4, REM LAAOE 

LET I .2 LET > -1 

LET « «EJB LET y>BB 

LET *♦- "By RJCHAAD TRVLOB ' 

PRINT INK 1, REH LARGE 

PRINT RT 12, B, "Kav ID aDV 

PRINT «T 1*,3, -'K«« * 10 00* 

PRINT AT 16,9. ■'«■■« B It itfo 
00R0" 
PRINT RT IB, 3," YOtf »U»1 C 

« Pith to";AT ib,3, -lirid on 

LET *<3 REM OBUECT Btib.t 

~ 4-1 REM OBUECT Plant, 4 

H OBUECT Ennu.t 

M PRINT Boib,. 

REH PRINT PI int .<•> PRINT Em 



LET d«4 LET t>-3 



LET 4-1 
C-B 

REH BREED BO0b,B,C 

REM BREED P(4nt r 4,4 

REM 3PEEO EmtU,*,, 



PRINT INK B, 
PRINT INK 1, 



COLOUR BO 
REH COLOUR Kft 



LET 4*7 REM UECTOR Be » b . * 
LET *-• REM UECTOR Plan*, 4 
LET 4-14 REM UECTOR EA*4v , 



1*4-" 

0430 
94*0 

mz 

0270 

B4B0 
LET 
0400 
O300 

S310 
340 
§1 
B33B 

15*0 
9380 
0300 

4 

f»370 FOR c*S TO 13 STEP 10 
93S0 FOR 4-0 TO S00 STEP IR 
»300 LET p-8 LET d -BO 
3*00 REM BOUND »,c,d,0 
0*10 NEXT 4 NEXT C 
9*00 PAUSE 100 

0*30 BEEP ,0.-10 BEEP ,0,-10 
CEP -0,-0 BEEP .0,-12 BEEP ,0. 
-IB BEEP ,0.-10 BEEP .0,-0 BE 
EP .J.-7 BEEP -0,-S BEEP .4,-H 
BEEP -4,-fl BEEP .0,-7 BEEP . 
2, -B BEEP .3.5 
i>4*0 PAUSE 30 

(?*B0 FOR 4-0 TO 7 PAPER 4 
0400 INK PRINT PRPER 4-1*0*40 
»0i , INK 0, AEM AEPLACE 
0*70 LET b-40 LET C-B LET 4-0 

LET r-9B*4 
0400 AEN SOUND b,C.d,4 
0400 *tT i PAPER - INK 



Pi-4** my B*y (c 
BRIOHT l;0 



0300 LETT i|. 

cent i niit 

0310 PRINT 00, AT 1,0, 
■ 

O940 PAUSE B LET •!•■■<■ TO > •* 
■ ll< 

0S30 XF INKETH -'- THEN OO TO 091 

J340 CLS 

0000 PRINT AT 17,0, FLASH 1, BRI 

"T 1, SELECT LEUCL " 

»0 PAINT "* - E»»V 

170 PAINT 1 - HtdlUB" 

^>0 PAINT *"» - H4rd" 

0090 PAINT "3 - U4 4-U Hirg' 

0000 INPUT Plftlt 5*l0«l ",L*v4 
I 

dO10 IF L4V4I40 OA LBVIt>3 OR L* 
'Hi.lMT L*u*l THEN OO TO BBBB 

."BIB REH ERASE Plmt 

■H RETURN 

">0»0 RESTORE 

^010 FOR 4-USR •" TO USA "4"»*7 

»0>0 REAP b POKE 0,0. NEXT * 

•030 RETURN 

4040 DATA 0,0.0,0.30 ,10* . 14* .SB 

40B0 DATA 469. IBS . 163 , 0BS ,488, IB 
3- 153, ass 

9I0BC ORTR 2* , O0, 12E> , 255 , 255 , 153 . 

133,255 

4070 DATA 0,194,148,180,443,183, 

103,488 

4000 DATA 0,0,4*0,39,095,1308,10, 



9000 DATA 0,0, 180,14B.0BS,00B,* . 



9500 SAUE BOB ban" LIME H«M SA 

OE 'ObU'CODE 61030,4333 

9000 CLEAR 01040 LOAD "CODE 

9004 RUN 

Just an example of the power 
of FIFTH CRL. 140 Whitechapel 
Road. LONDON E1 1EJ. 



Available from Boots. Menztes, selected 
branches of HMV, Seffridges and all good 
computer shops, or from CRL, 140 Whitechapel' 
Rd, LONDON E1 1EJ. Dealer enquiries welcome 



Oniyfg 



YOUR COMPUTER, DECEMBER 1963 237 



^mrnm 



At last available for 
your Spectrum... 

PAGODA 

...the ultimate challenge in adventure games 

PAGODA, the exciting adventure that is different every time you play, is 
now available but onJy from ALPHOID, And for orders received before the 
end of February 1984 it is offered for £8,99 (inc pErp)! Send your cheques 
or postal orders payable to ALPHOID LTD to: PAGODA OFFER, 67 
JOHNSON STREET, LONDON El OAQ. 

For use with 48K Sinclair Spectrum or 32K Commodore PET only 

STOP PRESS! 

Another release from ALPHOID! 

DEADLY SEVEN £3.99 {inc. p&p) 



=71 



October Software 
Bonanza!! 



Up to 30% discount on most titles for all micros. Just look 
at these examples: 





tWP ASH 




*W*» AS* 


■K 




ATARI 




Kj*» Got** WPmw 


tm $n 


Q» Atari 


»»n» 


Wtfjrt - a****** 


695 499 


Wiy Out . S*ut 


3) 00 23 » 


LWiX 




DRAGON 




St*** Mm - 0*m 


iH s n 


Ch*i**v - G*m 


T 95 S ?&■ 


W« Cm 


T9S STS 


5o»*» Gun - AomA 


99* 7« 


t in 




onic 




KM Harr*r 


AM 4T* 


**nor, T - UK 


l»S» 


C*Wn - 


33 3& Jl M 


M>m CCS 


Mt S 71 


COMMOOOKt *« 




neat 




Ji*ne Man . Spy* 


33 00 13 99 


&u» nong - in— ckw 


6 00 4 9S 


Kukt w*t Av urn 


!]Ji 9 5S 


Miction Mucufy — Ubflm 


*95 6 H 


SPECTRUM 




mi 




PSSI Ullimdi 


5M 4« 


5c*nbla Quirt ■*! 


3H 2 95 


Coot* - imm 


SM *« 


G*uum 


3 94 2H 



All prices include VAT and Post and Packing is free. This is 
only a small selection of the hundreds of programmes we 
sell. For latest info, on price and availability either write Of 
telephone our 

HOT LINE - 07842-57599 

Send Cheques /P.O. to: 

ASN COMPUTERS LTD. 

Dept. I/C, 89 Station Crescent, 
Ashford, Wliddx. TW5 3HN. 

Mad OHar - Return trus add with your Order of Over ClQ and 
receive a f 1 voucher age»n*1 future purchase* at our m.id discount 
prices. 



ORIC SOFTWARE 

Dept, YC(1) 116 Worcester Rd. Malvern, 
Wore* . WR14 1SS 



SPECIALIST SUPPLIERS OF ORIC SOFTWARE 
BIORHYTHMS48K 
SYNTHESIZER 48* 
ZOD( AC ADVENTURE 48K 
CHESS 4SK 

ORIC BASE - Data ba»48K 
MULTI GAMES 48K 
ORICLANOER48K 
FORTH 48* 

Poetag* 6 pack.ng 50p It io 7 c**a*ne*j 

ORIC CASSETTE LEADS: - 7 PIN DIN - 3 JACKS 

48* ORIC NOW IN STOCK 

Postage and packing 
CGF-115 4 COLOUR GRAPHIC PRtNTER 

Cable for One Computer 

Pottage ft packing 



595 
796 
9.95 
9.95 
9.96 
7,96 
7.96 
1750 

2 25 

169-95 

595 

T49.00 

22.96 

6.96 



Return io 
ORIC SOFTWARE. Dept YClll. 1 16 Worceater Rd. Malvern. 
Worcs . vVRU 1SS Tale Malvern (068451 62467 



I kM I 18* One D 

49* One Q 

My KlTwtl mm** I'* - 

MOfn# Buwnfl 

Stem 

Ofwinatoolil 

tafeoA 

P imm dHHi "v» Accw v 
AM*. Dck* - wmt 
He 

SOFTWARES WRITERS:- Lump turn or royartv payments, 

Send tapes is details 

t Tapes not returned unto** pottage * included). 



338 YOUR COMPUTER, DECEMBER 1983 



N^ 



Golder 
Apple 

48K Spectrum 

You must set out on a quest to find the 
Golden Apple'. On your journey you 
will pass through mansions, travel 
overseas and onto an island, hunting 
your treasure. 




■r i 



or/. 



ZX Spec 

ZX 81 Adventures £5 95 

Ail these games are instant- response machine 
code programs. Adventures B, C and include 
cassette save routines. 




puling Ltd 
91 Sranoesburton 
Y025SRG 

Discount for 2 and i5°-b tor 3 

■re 

,ues and PO's made 

gayable to Artie Computing Lid 
ealer enquiries welcome 
Please stale whether your order is 
tor ZX81 or SPECTRUM 
Access and Barclaycard 
welcome 

SendS AE (9 m ■ 6 in) for FREE 
catalogue o I our wide range 
of programs 



fl 




16/48K ZX/Spectrum 
16K2X81 

You find yourself 

mded On a strange 
alien planet. Your aim 
is to escape by finding 
your captured space 
craft But beware of the 
little green man who 
may get to you' 




48K Spectrum 
16K ZX81 

You are in the middle oi 
a South American 
jungle when you 
stumble across a 
strange Inca temple 
Enter it 10 collect 
treasure and then try to 
return But beware 
don t let greed be your 
downfall 




WARNING T» in »pr«0'a«ntlrtieldKCtir*ns to ARTfC COMPUTING 
LTD* lot mi cri i«*d« and condition* o* i** Copai of wtoci 
a>aavaMliaen**quaM 



48K Spectrum 
16KZX81 
While on a 
reconnaisance 
mission you are drawn 
to an alien cruiser on a 
humanoid slave 
mission Try to escape 
from aggressive 
aliens luscious 
androids and drunken 
barmen Your only help 
is Fred the friendly 
android 



48K Spectrum 

16K ZX81 

You have to survive an 
engine failure while 
(lying over an apparently 
unmhabitated island in 
the South Atlantic Use 
your wits to harass the 
enemy, but treat the 
beautiful natrve women 
with respect, to escape 
from the island and 
return loan allies 
aircraft earner 



ARTIC COMPUTING LTD 

Main Street Brandestxjrtan 
OnrfieWYOZSSRG 




;11M 



PtMMiuahms 

■Advsniwe AnaDcDoDcD 

'to* my ZXS1CS 95 /SPECTRUM t$ 95 
I tnclOH a chaquc hx £. 



or debit my Barciaycard'Access tcoourt 



ii 1 1 nun irrrm 






ADDRESS 



"Tick Oa Je t O C* OO m Qt eH m appa g ton 



J L 



THE TRICKSTICK 

A REVOLUTION THAT RUN 

AROUND ORDINARY JOY 









s~~ ' 






4k^ ^ 


2 


K 


L 


f 

1 


1 1 


- 


m 


1 


1 




% 


1 
V 


m § 


> 



I 



TRICKSTICK TURhS YOUR SPECTRUM IMTOTHE MOST SOPHISTICATED 
GAME5 MACHINE IM THE WORLD 

Why 15 TnckstJck superior to ail other joystick systems? 

PROPORTIONAL: A brilliant innovation in the circuitry of the Inter- 
face gives proportional control (ie varying speeds and rates of turn) 
even with many non- proportional games The design tears up the text- 
booKs on conventional analogue to digital conversion and brings you 
unprecedented control and versati-ity; 

OHE TO EIGHT PLAYERS: Innovative design also enables you to put 
up to eight Tncksticks on a smgte Spectrum Each Tricksttck comes with 
its own interface and the interfaces simply plug into each other 5o games 
playing need no longer be a solitary occupation, and the Ktds won t have 
to fight for their turn any more. 

SOFTWARE COMPATIBLE; Trickstick is compatible with any soft- 
ware which will work with the old-fashioned ISempston joystick 

PROGRAMMABLE: A low cost adaptor performs the technically 
sample job of making the Trickstick programmable, and compatible wrth 
ANY software 

110 MOVING PARTS; Small plastic-coated metal padson the Trickstick 
detect how hard you are pressing by picking up electrical radiaton from 
your fingers. This is then amplified and fed into the interface. So there 
are no moving parts at all* -not even the fire buttons This arrangement 

was proved in competitive mate to give the greatest control and 
potential for spectacular skill 



And this makes Trickstick the only games system which does not 
wear out wrth heavy use! 

ATTAKTICS; Trickstick gives new life to your existing software. 
Attaktics takes you and your Trickstick to new dimensions where skill and 
strategy are as im porta nt as the fast reactions of the very young The game 
ts very, very efficiently written in machine code and allows you to move 
in 64 different directions on the screen, giving perfectly smooth curves 
Combine this with your new-found control of speed and rate of turn, and 
imagine aerial combat against your Spectrum or against other Trickstick 
owners! 

USE THE COUPOtl OR THE PHOME: Trickstick and Attaktics are in 
stock and available now. Trickstick including interface is £28. Attaktics is 
£7.50 If ordered with a TrfckstJck and £10 on its own The Programmable 
Adaptor is £10 for Trickstick owners and £15 for others. The Training Tape 
is Free wrth each Tnckstick. Or call us for the name of your local stockist 




PteasesefTd me - 

I I TfKKaoch(s) wrth framing cassette at £2 8 each £, 

(w^ea^TncK3tK>i)orI10(onil5Own) £_ 



c 



jAlXaM>Qat£?SQ 



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Football Manager 

Designed by Kevin Tom* 
This outstanding game of skill and 
strategy is now widely available 
and you can join the many 
thousands of satisfied customer 
who have purchased the game. 
This is no five minute wonder - 
you will be playing this game 
for hours over many weeks 
(we know - our customers tell usl). 



Some of the features of the game:- R * v ** lo ™ 

* Matches in 3D graphics * Transfer market 

* Promotion and relegation * FA Cup matches 

* Injury problems * Full league tables 

* Four Divisions * Pick your own team for each match 

+ As many seasons as 
you like 

t* Managerial rating 
* 7 skill levels 
* Save game facility 



H*rr* Computing W«*feiy Id • » 3 



Comments obouf torn gome hxn press 
ana our customers 

FOOTBALL MANAGER is the best gome I 
have yet teen on the Spectrum and my 
personal favourite ol all the games on any 
micro ... To the ordinary person It is on 
excellent view of what cart be done in the 
field ol computer gomes The crowning 
glory of this game is ihe short set pieces of 
match highlights which show tittle stick men 
running around a pitch, shooting, defending 
and scohng ... If Is a compulsive game but 
people who cannot take gome sessions of 9 
hours or so, which happened on one happy 
Sunday, will be grateful to know mot there It 
o save to tape option FOOTBALL 
MANAGER has everything it could . . The 




GOAL'S 




Action from me Spectum version 



f, Addictive Game*, certainly 
deserve the name/Rating 19 20 (Practical 
Computing - August 1983) 

"When I first received this game I spent the 
best part of the weekend ploying it Since 
Ihen 1 hove returned to It more often than 
ony other. The fruiy addictive quality offhis 
game i* the remarkable way it mirrors the 
real football manager's problems 
(Personal Computer Games - Summer 
1963) 

"rft my own fautl you dVefwom me - 1 am 
totally and completely hooked on FOOTBALL 
MANAGER ." (Mr A Wright -Lancashire.) 

"It is by for the best software game that I 
have seen tor the Spectrum, {Mr. N, Lincoln 
-Surrey) 

'I congratulate you for a marvelous game 
which lceeps rne player enthralled " (Mr N. 
Creasev - Gerrard's Crow.) 

"t am writing to say what a great game it Is. I 
have spent over 45 hours on it." (Mr, 
Feam - Gloucestershire.} 

'Your FOOTBALL MANAGER game is 
terrific " (Mr N Cumming-West 
Bromwich) 



Available from computer software stockists nationwide, including $Hj> &WH SMITH $ 



Prices: Spectrum 48K £6.95 
ZX6116K £5,95 

IN B 3D GRAPHICS ARE NOT INCLUDED IN 
THt DC81 VERSION) 
i first WD 



To Order by moll {p*p tree} send cheques or 
postal crders to 

AMcUvt Games 

Alc*rt Haute. Albert Road, sourrwrrwulh iHt 1tZ 



I SD*C»um rmvon arty 

Dealers! For urgent stocks send 

your headed notepaper direct io 

our address. 



LEARN TO PLAY 
BRIDGE ON YOUR 
HOME COMPUTER 

Enjoy learning to play bridge with Bndgemaster. a 
complete bridge tutor professtonally prepared with 

world expert Terence Reese 

Listen to the commentary as you are coached step by 

step through the game While you listen you wW 

learn and piay bridge. Br do^masier contains 

commentary and computer tapes and a usef at 

reference book — everything you need to learn bridge 

'Bnogemaster realry does Dnng the game alive tor the 
oegMTner Soft. 

"A really pt ofrsstonal program 1 00% value for 
money " Home Computing Weekly 

For the Sinclair IX Spectrum 1 6/48K. Commodore 64, 
BBC B and Electron — £24.95 

Sinclair ZX8I JK/16K- E19.95 




MAIIELQ 

Available from Boots, WH Smith and computer 

■torn or direct from Brldgemaiter, F reeposi 

Dap? YCT2, PO Box 163, SLOUGH SLZ 3YY. 

Prut} mclude VAT, pent jnd packing Rerrutbuxrs payaljie to Dridormatie r 



compbell systems t^**«~- l 

IVISSTCrillG Spectrum 48K 

YES -Microdrive compatible! 

Act: I aime a ,»s the definitive hling system lot The 48 K Sped rum — 
MASTERFILE'S machine coded Me*ie*lity gives you 32K (ma*| 
per Me - 26 helds per record - up to 128 charterers per held - 
muinple level Marches for numeric or character comyjrisorrs - 
data presentation in any one ol 36 user tie lined displays whiqn 
may be sequenced by my field - USER BASIC for tailored 
processing, "... the most comprehensive ol the data bases ..." 

Sinclair Use* June 1983 
With example hie and detailed manual £15.00 

Drawmaster "WT 

P RAW MAST EH >s the ultimate DRAW AND PAINT utility lor 
the Spectrum - compote your own HI HES pictures with 3 
direction 7 speed hand draw key? - fast Ml - enlarge, reduce 
facility lot all or part of the screen plus all the Spectrum colours 
and attributes ovet 50 commands in all. 
With deta i led i nstr uct ions £6. 9 b 



ni A l\l DISPLAY Spectrum 

L/L/-\l V LANGUAGE 16/48K 

ULAN (dee Ian' |i DISPLAY LANGUAGE is a powerful machine 
coded interpreter for gerseranng DYNAMIC TEXTUAL DISPLAYS 
for adveriwng and education - ah commands are single letter or 
symbol - with 4 way scroll of 11 type-faces through user defined 
windows 

With detailed manual £7 95 

Alt /jf,Hfrjim nwleit til tliOi by twtum 
■v include VAT Mitl ftmlaye mttun 
furojBt SAE for hitt hit 

Dapt (ft) ISRousRond Buckhurst Hill. 
[iHi IG9 6BL ErtgUsnd 01 S04 0589 





For arty W 20 Uoytttctl. 



OUTBACK £ 5 50 



Trouble n about to drop in on the occupant! of 'Happy Valley" 
in The farm of rattwr tunning twigmrn 'Ma Happy' hat a very 
taphiitoaifd -l^fence set up and , with your help, could wm 
the dry. Which it d to be- a tranquil Hcppy Valley or a 
swagmen takeover' Haw long will you survive' It gets tough 
and hat m the OUTBACK. 

Ptnfr Mtcfrirw C«He *CtH>rt A same wfiif.h putfl out stt the tropi 
on the ViC 20 to 9'"* YOU • deceptively tgqreisirt end mddKtme 
crnfifngi It'll '*ofh tout 

'S fktlt irvtii *S Bonui Score lymttalt w 2 Bom/i Lite tertit 
*#vnrung ecofv On tCrwen 'fit Score (ttwlry 'Superb Sound 
wtth 3 frfirtrnt twei *E*trrrirrr ute of colour *nd arepftrci 




For VtC 20. 8K or WK eMpsnuon 
Your hiit assignment a 10 
assist the government of a 
fnendly power m averting 
a holocaust. TIME it imp 
onmt ACCURACY a 
essential COURAGE man 
□aiory But. above all, 
NERVE it I he primt 
attribute needed for your 
rnimon as an agent in the 
crack SM.il 
'Mutti Skill /Time tereti, 
*On Seirert km diipley. 
"Sonus tor eec* tcrwert. 
*'Mi*von Accomplished' 

"Bonui Lite failure. 
*HaU of fjmtr 
'Httlkttk Sound iHecti 
'Superb tiu> at Colour end 

0hanMs> 

'Keyboetd or Jayilick Option 



yOUR COMPUTER. OCCCMMfi 1983 243 




BBC 32K 




180! £6.90 2 PLAYER DARTS 

Bb a top d»ns cn»mo«c5n and enjoy ine 
hazards of '*> Srwigh*erto«h*f 
games tooeat your equal?* htm 

Opponent 




SPECTRUM DRAGON iORIC 




CHUCKIE EGG £6,90 
ARCADE GAME CoUeenheeggs 
baton* f» mMH get out and eat up nil 
yourcomi 



BOUNCER £8 ARCADE 
GAME Tnank youf bckystanitor 

the ami matter scoop to catch the 
BEEBBDS betoi* thay d>wn (he 
universe mio cOwton 






DEADWOODE6.90 
14 PLAYER ADVENTURE 
GAME An deal tantfy game tor 
everyone who can dKidt where to 
invest thetr oar* rod m the long swg 
in millions 



DASHING DOUGGIEf 6 90 

ARCADE GAME Supetxw 

Ctesftng Dougg* on>ts rhe work) 
delivering tajutd nounshmern Me must 
be ouch to stop I oetimq eotd 





SWASH BUCKLERS £6.90 
1-4 PLAYER ADVENTURE 
GAME Up lo tout prate 3>vp§ laden 
wilh treasure thai you want Scurvy 
fcneves ana imaapon too aon't help And 
•s Leper Island lha best place to go'' 



CYL0N ATTACK * £7.90 *«■ t-ne 

^JSSZttJSSS^J'"*** GAME I"™***™* ""*«« 
^wmomeria^pJ^rTOfdBfqf everyii^ng, with en ejrote horror ar ray o* 

I nasty nairves. man-aaimg «Mfer*«nd 

crocodiles too 



w „ 





DEATH SATELLITE £6.90 

ADVENTURE GAME vou'wr* 

out or fuel on an orbiting tataMa near a 
tOrtHOOng 'coot panel with mutant 
monttofs gu»n*ng you' vital lu* suppry 
Cart your wttftetoycu to survtve?. 




ZODIAC £6.90 ADVENTURE 
GAME *itrcaie game with pit Sails 
lo surprise, frustrate and to* you before 
you find your successful way But you 
can be resurrected 



JUNGLE FEVER £6,90 ARCADE SHRINKING PROFESSOR 

£690 ADVENTURE GAME 
Youreonryaninehhign Howarayou 
taJhal 




gong to survrve in the ga 
I those monstrous spider? 



I 

teksdoit 



WATCH 
THIS SPACE 



MfftrVSZ AT ' e6,9 ° 12 PLAVER CRICKET 

rVjj/JiJ^ Qj m crtcijan 5j flr amj onfj* all ffte hazards 01 e hcKei lo 



Maj 



i - I - .■ r yu •■ >r.<|i > r i » * I 



Linppnu r'AQTTi? £e adventure game 

hidden guarded c. 



n* can you gnt mm the castle/* The clues lead you lo Jhe 



SHRINKING PROFESSOR » ^venture game 



rwghr 
i wtrti aJ those rnon;irous spiders, ants end ottw 
giant horrors The crystals do >l 

pu & p Anwx: Tnx/K eb adventure game 

rrLrtJlrtWno IIW1D p^upine gold out don toe scared 

penniless rjy the m ummy Bpqu«ch it sinrealirrne.soiM^fcoyHhosefrwaic words 

PT ANFS £flARCADEGAME * 

I t^nixi^o Castor stow, stal and speed are needed lo beat the enemy 
aircraft attack 




AVAILABLE FROM 

YOUR LOCAL DEALER 

AND MOST COMPUTER 

BOOK SH OPS. 

Also at: 

JOHNMENZIES 
■WH SMITH 
r>tarr*dHemspfirv) 




A&F software 



Unit 8, Canal Side Industrial Estate, Woodbine Street East, Rodxlale. Lancashire OL16 SLB. Direct rrom our mall order dept. Tel: (0706) 341111 






I 

• 



un of the d> n\fl in ir hands on one. 

This supfi Unit, the ultimate luirements lot the 

serious games enthusiast The Fullet Master Una incorporates both the rutlei Be irna/ing features include a 

Speech synthesiser, dn independent sound symhesisei <i joystick Interface, iin amplil standaid Spectrum sound, <i 

cassette interface and a hi h socket The park will also include a Mastei Unit demo tape and full documentation 

As wel! as the Mdstei Unit this Gift Pat k .ilso contains d de luxe Joystick, with suction adhesion, d firm smooth action and a 
moulded hand grip incorporating, twin firing buttons 

Once your Spectrum has been added to the Full*! latt Pdck you will haye an extended computer 
system that is second to none -^ ^m4± ^V ftW 

Now you can pit your mind against the tour unique exciting computet games included in tin l ^W ■ ■ M\ | 
pack These games have been especially adapted lor this superb system and have added arcade ▼ # %M \M j 
sound t ud speech to bung out the very hesl in your Spectrum mm § +M m*J *m 

The fuller Gilt Pack saves yuu {20 on the purchase price of buying these items separately inclusive of post <u\d pdrimgiug 



v RO 



ei 



Fuller Micro Systems 

Trie ZX Centre. 71 Dale Street, 

Liverpool 2 Tel 051 236 6109 



■■ «■< Iftr I 

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&r*ftd Bra trut) mdrf 
drpji rirvr m 1ii i-nvuif mil withr , 

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I endow i cheque POp*y*bklo 

ax> Systems toi w debit my credit card 

C-rd No I I It H 1 I I I I I i J I I I LJ ■«**««> 

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n Dale sertei. Liverpool J lelosi at>t>iK 



• 




Transform your Spectrum with the FOS Keyboard and fee! the newly acquired power flow from your fingertips as 
you enter data with lightning fast accuracy. 

The Fuller FDS Keyboard has been especially designed for the professional user. This elegant, slim line, desk top 
system has a keyboard that inclines toward you and contains all the graphic characters of the IX Spectrum, plus, 
additional function keys, shift keys on either side and a space bar. With all the entry keys double sire, lightning fast 
accurate data entry is now made easy, Other amazing features of the FOS include:- 

Gold plated key switch contacts, guaranteed for If) 6 operations. 4 cursor control keys, 2 functions for direct entry 
into E mode. 

Based on the popular FD42 system, the Fuller FDS is simple to install; it requres no ^"if {% f\ I 
soldering or technical knowledge. For the user who is reluctant to install his computer T £L%I \M p 
circuit board inside the FDS. a buffer is available {£8.75 + 80p&p) which simply plugs into mm m & m ^ *M 
the expansion port and connects directly to the keyboard. +U5Qp&p 



micro 

SYSTtMS 




Fuller Micro Systems 

Trie ZX Centre, 71 Dale Street. 

Liverpool 2, Tel: 051 236 6109- 



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Fuller Nlcio Systems tor or debn mv credit cdfd 

r.MM. f nrrn 1 1 1 n i n i **** 



e« Centre, 
roool 2 ret 051 2)6 6109 



This is an entirely new com- 
puter system it was designed 
wuh both eyes fixed firmly on 
the future So that whatever 
shape the future takes, well be 
able to tit it into the system Just 
as simply as the peripherals 
and software already available 
tit into the system Thai way, the 
system will grow with you And 
you'll never get tell behind 

• Based around the Z80A 
microprocessor, and utilising 
Microsoft" BASIC. Aquarius" 
has 8K ROM and 4K RAM resi- 
dent within its console it is able 
to provide up to 76 colours and 
re solution oi 320 m I92,antigener- 
ales its sound directly through 
the television's speakers 

• With twin cartridge ports, 
the mtm-expander aliows simul- 
taneous use of additional RAM 
and son ware cartridges Twin 
disc game hand controls are 
included and the unit provides 
two additional sound channels 
The J6K BAM cartridge plugs 
into either the console Or 
the mint-expander, increasing 
Aquarius" s RAMcapacilyto20H 

• With the ability to repro- 
duce the enure graphic and 
character set or Aquarius " at 
BO characters a second, the 
printer's 40 column output 
allows transcription of the com- 
plete mom for iru age 



^ m 0M* 





Using standard audio 
cassettes, the data recorder 
provides storage tor programs 
and information, and allows 
Ihe use o' cassette based soft- 
ware Incorporating a digital 
tape counter and transmission 
indicator, tt operates sequential 
searching. 

"* A large number ot games, 
designed to take advantage 
Of Aquariuses sophisticated 
colour and sound capabilities, 
are available on cartridges thai 
plug into the console either 
direct, or through the mini- 
expander Cassette based 
games can be used via the 
data-recorder 

I 
• A wide range of preprogram- 
med cartridges is available, 
including the LOGO teaching 
program and practical home 
data systems like FILEFQRM'" 
and the spreadsheet calculator 
package. FmFQRM" 




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WITH AQUARIUS, YOU WON'T GH Iff T BEHIND. 



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THE GRAPHICS 

ARE TRULY 

IMPRESSIVE' 

GofflpuMrl 




The all-time best-selling arcade jame 
for the 48K Spectrum 

* Amazingly fast arcade action! Includes: * Training Mode and 
'Unique Customising Feature The fastest and most exciting 
fame for your 48K Spectrum. 

Melbourne House is fist gaming a reputation for classy 
products, ami this is no exception Penetrator is unique in its 
customisation features and will astound those who like to 
sneer at arcade-style games played on home computers ." 

person a»«nwwwL0 

Penetrator is written entirety in machine language and lakes 
tip almas! ail of the 48ft memory. If you have a 48ft Spectrum, 
then you must have Peoetrator? 



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Are you missing out on all that your computer can do. These books show you how easy it is to 
improve your programming. Clear and concise, they will help you make the most of your 
computer's memory power, for more advanced uses and more exciting graphics. 

YOUR FIRST BASIC PROGRAM 

How-to- Program" book for frte first time computer user with colourful illustrations and simple diagrams to help you 
wnte your own first program in just one hour, 

PROGRAMMING THE Z80 

Instructive text, clear, precise diagrams and easy to follow examples explain everything you need to know about 
programming using ZBO microprocessors important for Sinclair, ZX81 , Spectrum and TRS 60 Model users. 

PROGRAMMING THE 6502 

You need no prior programming knowledge to make use of this detailed book By applying simple assembly 
language, you will quickly learn to make your microprocessor perform the way you want it to, Important for BBC 
users wishtng to extend their programming capability, plus Apple, Atari and VC 20 users. 

THE VIC 20 CONNECTION 

Learn the simple techniques for putting your VIC 20 computer to work controlling external devices. Control lights, 
electricity, burglar alarm system and other non-computer devices in your own home or office, 

THE EASY GUIDE TO YOUR COMMODORE 64 

A jargon-free publication that explains the practical operation of your Commodore 64 In word processing, maths, 
budgeting, filing and more, This fnendly guide explains how to use commercially available software, as well as 
teaching you the basics of programming. 

j ^P r, ^ i AH these books are published by Sybex. renowned for their excellent, helpful publications for 

^p ^^ computer users and distributed by Computer Bookshops Limited, the UK's specialist computer 

SVRElf book and program wholesaler. All are available from good bookshops and computer stores 

^^ ■ i^B#\ including Lewis s and John Menzies 

^^ ^7 Request for catalogues; Send SAE to- Dept. YC.12,83 

Computer Bookshops Limited _nl 

Lincoln Road, Olton, Birmingham B27 6PA. / ( \ 



YOUR COMPUTER. WCEMBIH Vftfl3 251 



ORIC SPECTRUM ORIC SPECTRUM ORIC SPECTRUM ORIC SPECTRUM QRIC SPECTRUM ORIC 



Harrier A ttack owe i and spectrum 

Pure mactwe-oode sucxx teat ec*on-oac*ed fsghh; 
drtrXtive area* 4ty(« game r«ounnq yMt »h* The 
hamar tah4S-0tt iw> an ft 
seaborne defences lo attach enemy eiitalahnna on a 
nearby viand The h*mer may ttytosksr stower n>gher 
or ower and ha* pomps and rochel we *itt» «mch to 
prossdase* and make ila own attack tM &e» too rvgn 
n is detected by enemy HN-lghMn iwfvdi i 
count* -Attach; - 10 a needs to hug tha i 
terrain wt*ch atao vanes wan every new 
essnd 6 heexsy deesnded By 
tar«4 . «mc^ agWt ma r^a^w may couttv^ajUN* or 
to by through A tally is Mot ol fast bombs and i 
p»u» ptaytr score and r*gr» score Finally th» 
mutt make as bomb-run over tha anamy base 
returning to as own earner 

CMC APPROVED VERSION U 
SPECTRUM VERSION t$ 



Staritghter omc-u* 

mand ol a gstoebe defence 
h-aveilng through nte«-i»#Mr ipac* to attach 
destroy intruding afcens At long range this a 
out on your computer icannar when desptays tiara 
the tocar Quadrant, with passing planets space sta 
none tar gates and ol course the afcens which may 
aM« m paths or singly scattering a«ti m*n«* mmes 
around your sixo You may couresjviMdi ttt aken* 
win your photon torpedoes, or r) you move-tn dote 
anough swash over to manual and visual control to 
awttvlkmqi^wati&tm\imioufr*ian 

Saw me star scape apm retetrve to your thti » mar 
osuvtes but watch-out lor me atran mines whvang 
pad YouiiwftnwKjiocorHiwvewMrfa, :arr<Mfy to pef 

bach to me retoe*ng oomti and then me twv>ga*»»to 
the other quadrants. Weapons shrew and r~ 
status are M moneorad throughout **$ pure m 
code <jerr* when miy te set to tan leva* 0> uM 
ORIC APPROVED VERSION ft 



Durell 

Software 



Depl. YCII Durell Software 
Castle Lodge Castle Green 
Taunton -TA4 1AB 
FNF.IAND 










Galaxy 5 owe 

&de one of GaUury S contain* three pure machii 
ooda arcade type space game* They conarel 
Gauiy «mchaaGataaian-typegair»«tihtS«Nnged 
aaana swooping down to bomb a te' 1 
rocket launcher n groups ot one two or three IV 
Astro War' « an asteroids-type game wen a i — 
shower moving sideways aorose the screen * 
your slap wtveh has right left .up and down contrrjti 
phew hra to West tie rneieors atong wen any a 
mat may ba faring amongst mem The teat game 
mewdea Space Chase when owe* a «ew from your 
cockpit ot a W eein g Man You we at hen and he mm 
bach so you mutt get a deed ha ojwekkr before he 
destroys your tore* stveto* Sele two o« ff*a <j 
consists ol two more arcade type space games out 
ume In BASIC, which are easy to toam bom bi 
short sanpte and dearly written unth every fane Ol 
BAStC orptaoed m an Encash REIaarh statement 
R)C APPROVED VERSION 6 1 



Jungle Troubles spectrum 

Pure machine code with vupsr cartoon graphic 
ongmel and wmy game is sot m ma depthe of the 

African furtgie Fnf younnjstdvedyourmantoOCded 
an are and crosa a nearby nver vie slapping stones 

msji pajatt i Ihw lw i '■&• Tw t trex^'* !*»*• ha must 
cfarnti ■ laddet to the nmrt revet where he has to lei a 
number o» trees <n rvs path As he does tret a 
merftjrjinq *pc ippeen from ir» let ot me screen arm 
steels his axe' So back, to me start tor another ase and 
mom pwWsnn * ,,f ' "* r *ix*«J*c ai^j mo op* Havcig 
h*aed «i path mfougTi tne twest he may chrnrj anomer 
ladder to level twee wham ha has to leap a pit ot 
tame* by grabbing a swmgmg mpe Wd he 
escape back, to me city '■' Can rw tump me ehasr 
auddanly opens baton han |ust as he * about to roach 
home' A f*^Wy amuvng game wen daagtstut graphics 
smledto jTm«ricwr»o*ir«tft^-rxj!v«¥rni»trakn9 

SPtCTFMV VERSION < 






fJWC- 1 and SPECTRUM 

Pure machine code wen super cartoon graphics You 
are in central ot a over who mutt **wn down through 
tatyhsh shartcs barracuda and a host of other under 
sea nasbas to locale me entrance d a submarine cave 
Ha must then ledow as hvaumgand branching pas, 
•ages which change w*h every new game to locate 
me gfeysj bSBbn wtr' ;hen iaDuhxi% ttasu'w o* 
enormous peart* However many o> tha passages 
sss9 b *4u f/rs *ri<ni soma ari ssao •W'l'i nun sal 
u ndena a iar monsters, and even the pjrant oystars are 
faabw to snap-shut and catch tie dnrar just 
reachfri out tM hand Each dwe he* to be bmed 
carehw t se mat mere * enough orygan left foe the 
retum |0urnay when «s further frustrated Oy t»te •■■ 
Ooat fthrhvig anchor art ttoeatarvng t> 
frth !?<, prapsju 

ORJC APPROVED VERSION €6 95 
SPECTRUU VERSIONIS 50 







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MAILORDER 

ORICC6-95 SPECTRUMES50 

Pries include* postage and pactong 

TYPE OF COMPUTER 

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CRL brings a whole new world o! excitement right Into your 
living room! 

Gaines that Lest you [-skills to the ultimate whether it's zapping 
down Invaders or playing a whole game of cricket. 

Only CRX. offers such a wide choice of computer programs for the 
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inch one today ;it. Bonis, I,askys, Menzies, selected branches of 
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direct to CRL 

Never has so much excitement been contained in a cassette! 



140 Whltechapcl Road London El 




£ 



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ALL YOU 



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Introducing the incredible H.U.R.G. — The ultimate game program for 

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you want, and tf .U. R-C. will animate Mmw irito Hm most amazing o »» a r e en action you've ever 
seen. Choose any setting for your gamt, from mates to outer spec e or sinister caverns 

— the only limit Is your imagination. 
y SER FRIENDLY — H.U.R.G. will lead you through e series 
of eesy to follow procedures, ertdirfg In the oreation of a gseje that i* as wild . 

m* your imagination! 
REAL TIME — You can see exactly what you'rt^reating 
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the characters and even make them mote vicious — it's all up to y< 
end you can see it all on-screen irrMiwdJj^sJg. ^ 
<* AMES DES4CNE R — H.U.R.G. enables you^^0p> and 

store . -> ii fs ' you oi r e et o en c a ss e " 

the control 



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.♦ Ontmie 
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Ut Trafalgar H, 
London WEt 



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Now you can create all the stunning arcade effects on your 
Spec t r u m the t up u nt i I no w he we on ly been a v a i la b le to prof e s s i o na I 
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BONUS 



To really fire your imagination, H.U.R.G. includes 
three ready-to-play fast-action arcade games. J* 
created using H.U.R.G. ♦ 



48K SPECTRUM Cassette! 

D H.U RG, 

: TheHObbit 
D Penetrate* 
G Terrof-DafcW 40 
Melbourne Draw 

] Computer Bridge . . 
D Abersofi Foflh £14 



£14.9 
£14. a 

£6 3 
£8 9 
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Design a Game 

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I enclose my □ cheque 
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J) Please deb«i my Access card No 



.♦♦ 



Expiry Date 
Name 



Signature 



Addtess 



Each month up until February 1984. three prize* 
will be awarded every month 
for the best games of the month 

At the end. the best geme will win ♦ 
a grand pr tea of £3 ,000 J* 

vOU could be a famous game* + 

designer! Every entrant has the a- 
1 oppo rtu n ity of being pu bll shed by ♦ 
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HURG will be officially released at the end of October Get your order m now. and reserv 

your copy so that you can be among the first with this revolutenafy software 1 

Access orders can be telephoned through on our 24-hour aneatone (01 J B5B 7397. 



ung royalties 

Details of (he competition 
are available with 
H.U.R.G. 



♦ \ YCt» | 



Melbourne House 



ORLANDO'S BACK! 




THE 



Software, creators of the Ultimate Atom 
Otmn, bring yon VOW 

ULTIMATE BBC SPACE-GAME 





.... 

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Se> t your compute M-eotoured aliens swirl past your laser-base 

first squadron appears harmle c later waves will avenge 

the deal'. r-ades with increasing ferocity. To combat the swooping bomb 

dropping meanles, you may try I p a pair of laser-bases and loubl« your fir» 

powtrt progress through successive phases wll .ge 

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y hope of survival. . . 

One or two player game • Keyboard or Joystick • Sound on or off * Escape facii 
• Work 1 OS't es • Ten name H 9 table • Mode 2 full colo 

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* u a co, 9 r ile library case • High quality 

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Send cheques/P.O.s for £6.90 CO 

Jlirdvark Software, 
100 Ardl«igb Ort«n Road, 
HOBVGHUBGH, 

FRAK coming soon . 




WKh the VCfll range c* games now available lor home 
computers each holds a dtflereni challenge Now the 
Kempfion Competition Pro Joystick will come lo your aid and 
improve your pkrying copatuBtos Your movements will 
become quicker your finger poised over the lire button at Ihe 
ready, your scores wiU be out 01 ihe world PJayng will be 



ll you re serious about Ihe challenge your computer 
presents then you shouldri 1 be without ihe Kempslan 
Competition ProJoyttcit 

Compatible wilh any Alan 400 800 Vie 20 Commodore 64 



JOYSTICK nempsron 

INTERFACE 



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Now Available separately the Kempslon Joystick 
1 menace tor the ZX Sped mm OKiY £14,99 

Allows the use of any AtarvCommodone type Joystick m 
the popular ZX Spectrum computer A mus lor any Spectrum 
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ot the Spectrum Simply plugs inio 'he edge connector at the 
bock of the Spectrum No rrcdiiica&ons necessary On|yEI4W 

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Conwis*on Tape ol your choice (value W 95} U you order 
etther the Spectrum Joystick or Spectrum Interlace 
limited otter so order NOW> 

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bom grgnm smpfy load and ptor wtfv ft* Katnptfor, 
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* Kcmptgn Convmon Topes ttme game* can now In 
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Cotnwnaoti Tape t 
• CarmA Horace 
GcetSUAg Hungry 
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PERSOnRL COHPUTERS 

48 Junction Road, Ar chway, London N 1 9 5RD 

TEL: 01-263 9493 or 5 

I fIS AOvKI on ad auwtti rf Arnonftl Comft«T» TOu only r**!D«* 
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Spectrum 48 K 



(Author: Tina Bilfett) 



A new and totally original game for the 48K ZX 
Spectrum. 

The Mopp household is yet again in a turmoil. Mrs 
Mopp springs into oction attempting to dear me 
debris which her untidy family hoveleft in their woke. 
The frantic pace of the clear up takes its toll on Mrs. 
Mopp who occasionally succumbs to the pressure and 
resorts to the bottle for a little refreshment, with 
hilarious results! 

The gome features 8 directional movement from 
keyboard or Kempston joystick, increasing difficulty, 
great graphics, sound effects and high score feature, 
for just 



£5 95 inc. VAT 



W^^ (Aulhoi 






BBC 
Model B 



B- 



(Author; Eddi. Mil*.) 



Welcome to Acorn Park Golf Club, a picturesque 

course set in the heart of Cambridgeshire. For those 

straying from the fairways there is plenty of difficult 

rough, numerous water hazards and croter-like 

bunkers to make life difficult. 

We hove a number of vacancies for new members 

(including ladies, juniors and senior citizens), ot the 

very special price of £7 95 inc. VAT, 

Please do not delay, membership is limited to BBC 

model "B" users only. Electron owners will be 

welcome in the very near future. 

Superb graphics, excellent sound effects and a truly 

aadictive quality moke this a must for anybody 

hooked on the great and ancient game of golf. 

£7-95 inc. VAT 



CDfTlPUTREDLVE ltd 



8 Ontro! Perad*. St. Maries Hill. Surbilon, Surrty. 

T«l«phen# 01 390 5135 

Op»n 9.30- IB. 30 Monday Saturday 







After you've owned a micro for a while 
you begin to wish you'd invested in a bigger 
memory. 

But when you want to upgrade you are 
suddenly faced with a number of problems 
the brochures didn't mention. 

If you have one of the cheaper models 
you probably won't be able to upgrade at all. 



And with some of the more sophisticated 
machines you will be shocked by the expense 
of the hardware required to upgrade. 

Not with the Lynx. 

Probably the single most important aspect 
of Camputers' Lynx is its expandability. 

From the start the Lynx was designed to 
be upgraded- internally. From 48K, to 9 6K, to a 



48K Lynx £225 96K£299 128K£445 



Lynx iracTo-computprs. peripheral ard sofrwirc ar* iVAilib'e from selected 
nationwide dealer n*fw oik Tor your nvireii floe km telephone 0323-315063 



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Ifuiiy professional 128K - and beyor.d 
The UaX Lynx (available December) 
with additional Disk Drives opens tho door to 
the exciting world of CPfM* where you will 
ftnd a vut range of ready made small business 
programs fi om famous software houses. 

You can buy into the Lynx system at a 
level that suits you and your family and be 



assured that when you want to move on 10 
bigger things you won't be leil with a bin full 
of electronic junk 






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LYNX^ 



EXMNDABLE NOT EXPENDABLE 



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High resolution colour graphics facilities on 
micros provide outstanding opportunities for 
creative presentation of complex or irregular 

images. Maps, technical drawings, illustrations, 
even personalities can be accurately 
reproduced But full use of these facilities is 

inhibited by the tedious and time-consuming 
plotting of individual coordinates. 

The RD Digital Tracer solves the problem of 
tedious plotting by providing g enuinely instant 

transfer from original drawings to display file 
But a Tracer does mare than that , . . 

\ JirRto'.rrted horH copy from 7X printer 




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The RD Digital Tracer 
is supplied with 
connects-/ interface, 
software ca i jeite end full 
instructions on use It is 
ovfl^loWp from SpOttfvm 
and ot^r computer shoos, 
or direct from RD Laboratories 



• Instant Full Colour Image Transfer and Scaling 

faithful reproduction of any shape is produced on display file 
immediately, simply by mov : ng (he head of I he Tracer ovtf thf 
original outline. Fast PAPER and INK colour change is provided. 
The software also includes an infinitely variable scaling routine. 

• Special Constructions 

Circles, lines, angles and rectangles can be rapidly sampled 
and applied, based on amy two Tracer incut points So 
windows and wheels, bar charts and frames, and soon, enn be 
added to outlines within seconds 

• Colour Fill and Texture 

Fast colour fill, or a chaice of colour hatching con be added 

within outlined areas on *hp display; 

•Text and Symbol Positioning 

Text, or user<Jefined symbols, con hv? positioned o? desired 
under the control of the tracing head 

• Display Print, SAVE cincf Re-trace 

Besides colour display drawings may be printed. and ^AVf-O 
on cassette lor video recorder) And with the re-frai^ 1 retire 
amoTino animated presentations con h** mode 

BBC Micro Tracer 

This Trarer ve rtfnn operates with *^ 8&C 
Micro Model B. or ADC converted Model A 
computers It is suitable for all colour modes. 
including Teletext, and a "colour palette", which 
con be modified whilst the program Is rurmina. 
relieves ihe user of complex GCOl colour 
specificntion Accuracy to T%isoch!evedover 
o full A3 trocing area Software is provided ( c»r 
both se "ial and parallel printers. Th*» price of 
E69.95 includes P&P and VAT 



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>1 MS „ Tmcrfjtfor BBC' Micrd at £6995 each, fotal £. 

*""* m « Traces! for 7X Spectrum ot G55 50 w\ t*tr.t £, 

Nome 



ZX Spectrum Tracer 

The ZX Spectrum Tracer f compatible w*th 

ZX8 1 1 operates with n'l 7X Spectnjm 

variants ond accessories, induing 

Sinclair printer ond Microdrive 
plk Orig^nnl iirt»cif up fo A4 may b* 
trnrerj with a typical oevracy 
greater tbnn ?°*> 
The price of f»5 50 
includes P&P and VAT 



O Address 



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Cheque, payable to RD Laboratories Ltd, (or £_ 



.endosed H 



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Send tC' Dept YC RD lohomtories ltd 90 Court Rood Estate Cwmbran Ci 

Gwent NP44 3 AS Alow 38 days fc del ivery. |-J 

"t^~*~ ■~i™ , ~i"'" ,- '~i~ ,-, ~0 - -,-,- COZOZOZOZOZOZOZ!'.» , .A»OZQ 

Economic Micro Control 

RD laboratories ofso supply the KD 81 00 SYSTEM fcr automatic 
measure me ni, tesr and control. The modu!ar-ba«d RD 81 00 SYSTEM 
h already widely used in rrwny applteorions from scientific 
expe'im»ntntioi to STtall-scole energy monogement $v$tem« 
'-CCCCC , rCCC , ZCCCCCCCCCCCCCCCCCCCCOZOI , ZCCCCCC , l , I*^ W-*. 

j"ijZ" t i i» iT i*"»"i"i"i"("* i it i I » i i i i i i i i i * i i i i J ii l t i i CC"3H|yi; ; .; / ' 

!]Z|- jZ] c o" '■ ^*v*r product details pteow send your name, address ond •"■'•"t^^BHBII ; . v - |JPr* ! - !-J 

*;*i", "~i postage stomp to RD Laboratories Ltd 20Couri Road Esto»e Cwmbron i'iViViiI ^" ^^ ^^jZCCCCi 

<*r-:-:-! : : : : : : : : : i Gwem Nm 3AS Tel Cv*nbran(06333l 74333 Telex 437240 ^^rrH-I-rrFB^rroioioio 

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262 YOUR COMPUTE OECFWaee 198 J 



Can you combat the 



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48KSPBCTRUM ONLY £4.95 

Your spaceship must survive bv^ 



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. through s Dace at you Your aim is 
to shatter and re-shatter the 
cosmtc 01 fbris, while destroying the 
nasty iittk \ flying saucers. 




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48K SPECTRUM ONLY £5.95 

The real 3-D tank battle game You 

must travel across Ihe flat plains 

and battle with the enem/3-D 

tanks, supertanks and flying 

saucers. Includes a battle readout 

and radar above you{ sights Full 

3-D explosion, burning, finng and 

moving effects 



UN 




16 K ZX81 



Ipectrum 16K/48K Spectrum £495 16K/48K Spectrum £4.95 



£3.95 

You are doomed to roam 
through the haunted maze 

until you are eaten alive by 
the ravenous ghost Similar 
to the classic arcade game. 



1GK ZX81 £3.95 

This full colour, ht-resolution 
(Spec) machine code 
program is as exerting as the 
classic arcade game. There 
are nine levels of play in 
which you must defend 
yourself against invisible 
Galax tan fighters which 
swoop down to bomb you 



16K/48K Spectrum £4.95 
16K ZX81 £3,95 

In this high speed arcade 
game, you must blast 
through the alien's force 
field avoiding Ihe fighters 
and bombers to desiroy me 
Mother ship, 

WAMWtO Th*M prflfimt t't MM iccwdxif iq ABTC CQWPU " rNG 
LTD t latent Qi ir*d* and ce y mnimi a a* —a*. C tH fl i t ol miweh 
ft **•' *b* on r*4u»»l 



Fight the invaders as they 
drop, line by line, to 
eventual ry land and destroy 
you This classic arcade 
game includes nine tevels 
and four variations of play 





T^?v 






All the these games are 
written m machine code -to 
bring you the best quality in 
SINCLAIR GAMES 

Artie Computing Ltd, 
Main Street, Brandesburton, 
Driffield Y025 8RG 
and P;0 *s made payable to Artie Computing Ltd. 
eater enquiries welcome. Please state whether your 
order is tor ZX81 or SPECTRUM 
Access and Barclay card welcome 



r 



To Artie Computing Ltd. Main Street. 
Brandesburton Driffield Y0258RG 



«PS 



Please supply 

'Cheque for total amount enclosed £ 

'Access/Barclaycard No. 

LULL 



n 



LT 



(9r»r 6 m) for FREE catalogue of our *»<}e range of progf 



Name 
Address 



I 

'Please delete or complete as applicable 



Personal and Prole 





MTX512:64KRAM £315 
MTX500:32KRAM-£275 

Please phone for the address of your nearest Dealer 






MEMOTECH LTD STATION LANE WITNEY OXON 0X8 6BX TEL- 0993 2977 TIX- 83372 MEMTEC G 







The All-Purpose System 

The MTX Series is o new departure In microcomputer technology. 
Whether your needs as a user are for personal programming, 
games playing scientific or process control, educational or 
business use the MTX Series is already capable or very easily 
adaptable to almost every application Glance through the 
standard features below * you'll see what we mean. 

Hardware - 32K RAM 

on the MTXSOO, 64K on the MTX512. 

The MTX500 has 32K of user RAM as standard (MK on the 512), 
expandable to 5 1 ?K plus J6K of video RAM, controlled by a 
separate Video Processor Sixteen to lours 40 column text, 256 x 
J 92 high resolution graphics with all sixteen colours available 
and 32 easily moveable user defined graphics characters (Sprites) 
combine to make effective screen displays quick and simple to 
achieve Standard outputs are Centronics printer part r two joystick 
ports, an uncommitted I/O part, 2400 Baud Cos set te port, 
separate TV and Video Monitor parts, 4 channel sound with hlfl 
output plus a dedicated cartridge part Of her standard 
features Include the Z8GA processor running at 4MHz, reol time 
clock, full moving key keyboard with 79 keys including eight 
2- function keys ond separate numeric pad. 

Software 

The MJX's 24K ROM contains several languages and routines 
which enable the novice or the experienced programmer to moke 
full use of the machine. Standard languages are MTX BASIC, 
MTX LOCO commands. NODDY, ROM routines Include on 
ASSSEMBLER/ DISASSEMBLER with screen display of the Z80 CPU 
registers, memory and program , which can be manipulated from 
the keyboard. Machine code programs can be stepped through 
one Instruction at a time, and easily catted from within BASK 
programs A further feature Is the Virtual Screen facility which 
enables the programmer to split the screen Into o maximum of 
eight sections to work Independently whilst maintaining all full 
screen facilities. Pascal is available as an add-on ROM pack. 

The Disc Based 

Computers from Momotech 

Designed to use the full power of the MTX computers the FDX ond 
HDX make perfect business systems at prices which make perfect 
business sense. 8oth feature the CP/M operating system, giving 
Instant access to a wide range of proven application software. 
Available in October these feature: 

• Putt Western Digital floppy disc controller set with SASl 
interface for 4 drives. CP/M types 013 

• minimal latency, very high data transfer rates 

• optional Colour 80 Column Board 

• optional Silicon Discs {1/4 Mb) which dramatically Increase the 
efficiency of 8 bit software to those of 16/32 bit software; 
increases lite and reliability of mechanical drive 

• permits single disc CP/M operation 

FDX- Floppy Disc System 

ior2 5 1/4" Qume drives 500X unformatted, 347K formatted, 



HDX-Hard Disc Syst< 

5 1/4" Qume drive, 500K unformatted, 347K formatted. 
5 1/4" Winchester which may be 5, 1 0, or 20 Mb 

All Memofech products ore designed and 
manufactured in Oxfordshire, England 

CP'tA li a trademark of Oigliol ftnwrch Inc. 



MRTSZ 



nenoTectt 



The Complete Ban 

Fifteen months ago Me mote ch developed the fust 64K Memopak, designed to maximise the capabilities of the Sinclair 
ZXSl. Since then, using the ZX81 as a starting point, we've gone on to produce a comprehensive range of Mcmopaks, 

adding 16K and 32 K memory expansions, utilities packages comprising a Word Processor, Z80 Assembler and 

Spreadsheet Analysis, plus Communication Interfaces, High Resolution Graphics and a professional quality Keyboard. 

To complete our range of ZXSl add-ons, we are now introducing the MfcMOPAK RS232 Serial Interface. 




RS232 Interface 

The RS232 is an ill- purpose interface 
which allows the ZXSl not only to 
output to suitable serial printers, but 
can link up with numerous types of 
peripheral or even other processors. 
The Interface ha* two main modes of 
operation: BASIC mode allows you to 
use the range of functions supplied in 
the RS232 EPROM within an ordinary 
BASIC program, and TERMINAL 
mode allows you to use your ZX8I as a 
terminal to another processor - 
The EPROM functions offered permit 
the user to send, receive and convert 
byics between ZXSl code and ASCII, 
as well u check the status of numerous 
control flags. Received or transmitted 
data can appear simultaneously on the 
screen, and received data may be 
printed simultaneously 

£39.95 inc VAT 

Memopak Centronics 
I/F 

The BASIC commands LPRINT, 
LUST and COPY are used to print on 
any CENTRONICS type printer. AU 
ASCII character* are generated and 
translation takes place automatically 
within the pack. Reverse capitals give 
knrai ljvc AddUtaMj tjvihuc*. tBm 
high resolution printing 

£24.95 



lik; 



VAT 



Memotext 

Text is first arranged in 32 character 
lines for the screen with comprehensive 
editing facilities. On output the user 
simply chooser the Line length required 
for printing and the system does the 
rest. Used with the Memopak 
Centronics Interface, the Word 
Processor makes available printout with 
80 character lines, upper and lower case 
and single and double sue characters, 

£29.90 toe. VAT 

Memopak 

Memory 

Extensions 

For those iust setting 

out on the road to real 

computing) these packs 

transform the ZX81 from 

a toy to a powerful computer 

Data storage, extended program 

mutg and complex displays all become 

feasible Further details available on request 

16K Memopak £24,95 J2K Memopak £34 95 
MK Memopak £49,95 Prices inclusive of VAT 

Mi Sll i i' \k s UU \ '. Ill All 1 I. A? MAIN 
BRANCHES OF WH Mil tH tad JOHN MENZIE5 

Z80 Assembler 

The Assembler allows 
you first to code and 
edit I source program in 
the Z80 language, and 
then assemble it into 
machine code. You can 
now write flexible and 
economic program*. 
The Editor mode 
allows you id code 
directly in the right 
format, manipulate 
individual lines and 
control the exact i 1 *— *^g 
of source and machine 
code. Routines may be 
merged or listed lei en 
to • commercial punier 
using our Centronics 
Interface)- The 
assembler mode handles 
all standard Z80 
mnemonics, numbers in 
hex or decimal, 
comments and user- 
selected label* 




Memopak HRG 

This pack breaks down the constraint! 
imposed by operating at the ZXSl 
chancier level and allows high 
definition displays to be generated. All 
24$ * 192 individual pixels can be 
controlled using simple commands, and 
the built in sot t ware enables the user to 
work interactively it the dot, line, 
character, block and page levels 

£29.95 u* VAT 

Memocalc 

The screen display behaves as a 
'window' on ■ large sheet of paper on 
which a table of numbers is laid out. 
The maximum size of the table is 
determined by the memory capacity, 
and with a Memopak 64K t table of up 
to 7000 numbers with up to 250 rowi or 
99 columns can be specified. 

£29.90 mc VAT 

All Price* are inclusive of VAT, postage and packing. 
To Order: Send your Name, Address, Memopaka required, plus a Cheque PoataJ Order Access Barciaycard number (please state 
which) to; Memotech limited. Station Lane Industrial Estate, Witney, Oson. 0X8 6BX, Telephone Witney 2977 

We want you to be completely satisfied with your Memopak - all our products carry a 14 day money back guarantee. 



£29.90 inc. VAT 



Memotech Keyboard 

The Memotech plug- in Keyboard phis buffer pack takes the 
effort out of diu entry for ZXSl users. The Keyboard has a 
light professional touch and is housed in an elegant 
aluminium case. The simple plug-in tysiem means that you 
are not obliged to open up your ZX8 1 , use a soldering iron or 
invalidate your ZXSl warranty 

Keyboard Buffer Pak 

The Buffer Pak pcrturrns a "housekeeping" function for the 
Keyboard, interfacing directly with the pun of your 2X81 . 

£34.95 me. VAT 




J 



SOFTWARE WITH 

BITE FOR „ 





Test your skill on th* Qt and Pm 
ci re un Accelerating to breathless 
tpeed i can you overtake? C*n you 
face the dinger of night driving 
« the roads get narrower > 




Bd I loon «*« u* £7.95 

Fuel level lew. Time running out 
Collect fresh fuel to ttay m the nr 
or plunge to certain agonising 
death 



Menacing marv eating spiders and 
dreadful apparitions Weakened 
by potion you must climb the 
battlements and rescue the 
on ncef i who holds your antidote 



KiHer bats in th* tint wave, a 
myriad of asteroid discs ii> th* 
w*ond Th* third ttiw7l... the 
faster your reflexes, the more 
deadly the challenge 








Outstanding quality, unbelievable value 

Aliigata presents an exciting range of 
games and utilities applying full machi 



-— «■»■ ■ * ■mw' ^ wa * p -—» *jf- — ■ * » *• ■%* -^ ^- ata> m#> ■.■■■■■ au + ■-• « * ■ * ■ %■» ■*■• I I 1 I I 

code and high resolution, full colour 
graphics to the limit Whether it's 
hours of absorbing fun or the 
hours saved through data 



SQUHS 




hv 



Artec Tomb Adventure 17,95 
Find the lent tomb deep m the 

Am«on rain Iprest Experience 

heart itoppmg drama . . wtH you 
rwer get there? Every location has 
a full graphic picture 



Squash a Frog 



C7.9S 



Cross d motorway OT t ast moving 
traffic Traverse the rapidt 
teeming wrih frog eating snakes, 
alligator* and submerging t utiles 
Can you get him home? Or « it 
j,nt Ugh' Solan I 



manipulation - Aliigata has 
«en designed for *" 

rder today 
post 
telephone' 



<FZv/ 






SOFTWARE At 
WITH BITE AM 



with accurate control from Suncom 





Compatible wllti 

Atari CX26C0 Gam* Sy$t*nV 

Atari l^rsonal Computer Systems' 

Commodore 64 & Vc 20 Computers* 

\n adaptor iso*d separalety; is availabta lor 

Texas Instalments Tl 994 A Computef ' 

Adaptor MoOel No 11060 




Beating the game requires positive 
response and fast accurate control 

That s why beating the j 
Suncom from Consumer I 



fame requires 
Electronics 



A range of 3 Quality joysticks all with 
arcade-style features plus Joy Sensor, 
the ultimate, with precision , touch- 
sensitive control 

No stick to move, no resistance to 
movement 

Together with a range olCEL 
Adaptor leads they re compatible to a 
wi de range of m ach ines 

Check them out at your dealer - 
they re sure fire winners 

For details of your nearest stockist 
contact- Consumer Electronics Limited, 
Fatlsworth, Manchester M35 OHS 
Tel 061-682 2339 



from Consumer Electronics 



j 










3titaktnd 




&K Spectrum 4*k OfiC 






plec&e contact 
06h 366 -743/. 




6 on 



Amhbit +*om goodeoftwvr* Outlote 












































\ 



\ 



Hej.->b*tia lb\ VAt ItiltfpHtJi 



sinus i 



FORTH £i*5 00 
Pull FIG Fun! 

CHECH i U4 SO 
Ctl*t«C(W »Bt tfdllOr 

islcS u+ Ah i u Am 1 1 » !>o 

t^itiniiivt.' ALivtiMiu'c game 

QTHtLLG£19» 

With tl.it- y 'djjhiti 

MAZfc HUNNfcHtl4W3 
Thinking Mans M«;e Game 

RX£BO0O 

Fill Transfer Program 



fs commodore 

*■ 64 



DA r ABASE £21 30 

j?bb iJdvjcs of 10 Hern* 

NUNVAI ACCOUNISE21 JO 
Up 10 80 entries/month 

PAIN1P(C£Z3 00 

isujwi An iot the Commodore 64 

at ua&iv. i.b.g 

The Ultim#fu BdsiL Enlbiunon HUM 
HUHbt HACfc HJRL^S I £17 J4 
KKJ I bALL HJHtCAi T t U i4 



SPECTRUM 



MAP Of mE UK £10 40 
Education*! UK Geography 

HORSE RACE HjRECA&lt 13 04 

KjOI BALL FUHECAST n J 04 

SCfcPlRfcLa 0U 

New AtJVei inj't Game 

tEN tOiTOR/ ASSEMBLER f 1250 



^fli 



Ahr/yuxin 



EDITOR 'ASSEMBLER £29 50 

The first Z60 £d Ass for the 
NewBrdii I 
DlSASM£1450 

Dn.iisi! ■■him 

HlSUtM PA*L.AL £» 00 
| Compiling Pfl4t-i< 

CARD INDEX £30 43 

Mmtiyutpoire data nanagemenl 

prugieni 

Flit MANAGER t20 00 
Creates dn J maintains record* 

GOBBLER U 00 

Neyul ale a i <jit tuled witu 

hazardi 

FOOTBALL FORiCASf £2*00 

Suyhiviivaied Pools Foiecaaung 
HORSE KAL-fc FOtffcUASttNG 
£24 50 l n# 5enou> hunter > Aid 



\ 



» KUMA « >■ 
COMPUTERS W 

11 York Road. Maidenhead, Berks SL6 15Q 
Tel: (0628) 71778/9 Telex 849462 TELFAC KUM 



STAR TREK £B 00 

Save the galaay from int» Klmgon*' 

NDUMPC14 bO 

Dump yraphitiun Epson pnnlersi 

ALIEN INVADERS EB 00 
High Speed arcade game 




WDPHO[D«sc)£/99S 
Professional Word Processor 

MAlLPROiDiK>£69 9b 
Mail List for WDPRO 

DATABASE I Disc) £59 50 
Information Storage Solid State 
Recommended 

EASIVAT (Disci £89 50 
Compact VAT accounting system 

FORTH (CWk, £49 50 

Delivery l ba 

ZEN Editor/ Assembler (Disc) £3 ? *D 

Ed»to r Assemtnef lP-M 

HfSOFT PASCAL 4 |Oi*c| £40 00 
Compiling Pascal CP/M 

WDPRO (CasMtlal £39 50 

Professional Wordprocessor 

DATABASE V3 3 £29.50 

Solid State I nf or metiori storage 

EASIVAT {Ces»«nej £39 50 

Solid Stale. VAT accounting system 

CALC 3 1 fCessettei £34 M 
Spreads heel Calculator 

HG rOftlH |Ca**«ttel £34 95 

Fully structured sell extending 
language 

FORTH TOOLKIT £1450 
Forth word definitions 

HtSOFT PASCAL [Cassette I £35 00 

Compiling Pascal 

BA$MOP£»50 

Modifies Sharp SasicSA 5510 

ZEN £19.50 

ZflO Ed nor Assembler 

DISASSEMBLER £10 50 
Zen compatible Disassembler 

D¥BUG£17 50 

Mac time Code Program debugger 

MICROTYPE £39 50 
Touch Typino tutorial 

HOME BUDGET MKIII£ 14 50 
Home atcjunirng system 

CURSED CHAMBERS £1050 

Ati t-Kiiiuie game 

QUEST £5 50 
Adventure game 

PAK MAN £8 00 

A gre<ti alternative to Space Invaders 

PARAGON £5.50 
Adventure game 

LASrUtOU£5T£a50 

The latest new Adventurer Game 



iW£ SOFTWARE LIST < 




MZ 
7DD 



PAKMAN/MUJJPEDE £165 
Superb graphic* and sound effects 

QUEST £6 04 

An addictive testing adventure 
game 

CAS RE QUEST £8 91 

An adventure you'll never forget 

BUG ZAPPEfl £6.04 
Arcade style game 

MAZE MINDER £6 04 

Superb graphics and sound effects 

BEGINNERS CHESS £155 

The ideal way to learn, practise end 
becume proficient 

ELECTRON 22622 £0.04 

Fasi and furious apace game 

Mil SIC COMPOSER £8 65 

Write and display munt visually 
and audibly 

FUN PACK £6 04 

S i* e Kcifing games f □ r I he price of 

one 

Suparftre 

A battling shoot -out game 

Evasion 

Game of survival 

Gun 

Shoot down the Aire rah 

3-D 

Noughts and Crosses in 3-D 

Towers of Hanoi 
Shuffling disc game 

tfimm 

Thillmg adventure game 

COMPETITION £8 65 

An a making challenge gam* 

BASMOO TOOLKIT £12.61 
Sharp Basic extension 

PASCAL COMPILER £34. 35 
Professional, proven and reliable 
software tool 

KUMA FORTH £25 65 

Full fig forth 

ZEN EDITOR/ ASSEMBLER £14 35 

The complete system for the Z90 
programmer 

FIENUISM ENIGMA £8 65 
Decipher the coded message 

DATABASE £10 43 
Electronic Card Ince* System 

NON VAT ACCOUNTS £10.43 

Makes light work of necessary 
accounts 



EASIVAT ACCOUNTS £25 6* 
Up to 7 S entries per month 

MqMEeuDGtrta.es 

Kenv track of your home finance 



SHARP pc 

TANDV PC-2" 1500 



PC CALC 3 C 19. 50 
Spreadsheet 

PC PLOT 3 £1260 

Graphics for Calcl 

PC CALC4E19 SO 

More powerful Spreadsheet with 

graphics 

PC DATABASE £19. fj 

PC MACR0129 bO 

Macro Assembler Disassembler 

PC WORD f 24 &0 
Word Processor 



EPSON HX-20 



DESK MASTER i £29 50 
Office Aid Calculator program 

DESK MASTER 2 £29 50 
Word Processor 

DESK MASTER 3 £29 50 
Spread Sheet Calculator 

DESK MASTER 4 £29 50 
The Friendly Terminal 
DESK MASTER 6 £19.50 
Decision Maker 

DESK MASTER 7 £19.60 
Editor Assembler 

HOME BUDGET £17.35 
Home Accounting System 

HORSE RACE FORECAST £24.50 
Win oi place it's a winner 1 

COMPUTAX £49 50 
Personal Income Tax Planning 

DESK MASTER *£39 60 
The Editing Terminal 

DESK MASTER 8 £19 60 
Mail Listei 

DESK MASTER 9 £29 60 

RAM Database 

DESK MASI ER 10 f 19 50 

Labetier 

USER DEFIN GRAPHICS 

£1750 

CASH EXCHANGE £1950 

Plus lot* more , 



Phone for wit 
Software Catalogue 



'IHULs '■wxtMi' W«Mi*ndp*<*«n9loom»n jntta- 1 1 GO ■_# ■ +n rrw n- *u lav* 
, ■ , T«drt MrdiX**H»wt'll[HX).f 1H»U K TrtifiNjdW L'»diU»nJ arlrri |— 
<(4 i,7U'inWR^io»»#^>i.« 



Itrjir tut tun UO liFr ■BlLnnmiim 


rsTt^aifnl. f rwi **iwd <ovponi IP 






kuinji ii«ipuitf» 1 iJ 


1 1 Ni.rVUi.jJ VtjiJuihud.Bvtk^Mri 


ISQ 




■aeM 


Whr> 


Harvjater 


ifltrr 




D SMttUS 


Lj 


□ EPSON HX-20 






□ sAGt 


D 


ZJEPSONOX-IO 






□ SHARP 700 


a 


J NEWBRAIN 


n 




J SHARP A 


a 


J COMMODORE 64 


a 




J SHARP 3541 


g 


D ELECTRONIC MAILBOX L 




J SHARP PC 1500 


a 


□ printers 


a 




NAM 










AUOMfcS* 




Wlit t OPl 




-i 



270 YOUR COMPUTER. OfcCfcrUritH 19BJ 




Take a giant step t li rstr to reality with 
New Generation Software The 11) 
C Graphics of New Generation pntgrams 
bring the screen alive and makes other 
games Joofc as flat as. snakes and latldcr% 

Spectrum owner, will find that seeing 
Ls believing when [hey open the door on 
Till < i mw * »Hv hi ( ,i vi >s the latest 
t rcation from New ( rf-neration You will 
be saving the I "niverse from the evil thai 
now controls all things But beware - the 
sound of ftjoLsicps approaching could hr 
boguP 



i umiiiirMj (,(tHfl *«■ *rtk Spn-inim 
KftiU Ifi M) ft tr »HK Spn irum 

I he must <tut\Uirutinjj( thin% \*hi U *»*■ ftit 
u btrixttme t+tfiutttr* ittnfnittnyt ttn^i 
3t>TUnnd fur lt>k INK Spectrum 

I mtarerpuirtif p*''>ir<*"f f "vw f '•m/tmtr 






Jk^NS 



Hurtle into a void leaving .i trail for 
your unseen pursuers in *Kv * I i N M>* 
Weave your way through up to five trails 
but be careful, you could get knotted' Or 
t rive I through the depths of a moving 
tunnel Pull of bats, eats, spielers and roads in 
3D Ti \\U' with a special surprise in thr 
48 K versitwi 

Stamina is the vital ingredient of 
Im am-'', as yfMi'II be venturing into the 
maze pursued by walking and flying 
dinosaurs 

7XH 1 tjwners must be prepared for the 

kscapc kw KiK Spit irum jt-t <»S 

ftriettftt*' hest ami mint onuttutl wmft 

ii v htur sevn ft* the spectrum SAM lair f 'tpr 

* I J Mi mMcr Stuc lor 16K / X H I i49S 

Rrillumt Hnttuatt Hntiumi 

C'lfmtitr* < imputing Weebli 

M>l)rttTRkTfcif l(*?XHI A49S 

Another \l) Wmner Sin<k*trt irr 



shock of coming face to fact- with the 
T Rex that leaps our from M> Mowitr 
Maze" >1> Ditfmw »' takes vou out of this 
world and plungex you into spaee in a fast 
nv >ving game ti > defend vi mr home planet 
against alien spacecraft in a Nir/ of 
explosions, plasma blasts and photon 
beams 

Ml these exciting Ml games have hecn 
designed hv Malcolm rVan** the 3D 
expert They'll have you leaping out of 
your v.ii fxi ausc whi don't him play New 
t ieneration games, v<m live them 



*t jiIjNi- trom 
% it smith Koom 
Mrfvlr* Spritrum 
driiiip jh*1 ill Ic-ading 
tumputrr *m 




HU-jptis-riutiiBiAH? 

MjiI ntfcr N rt-nim 




Rubber 
Suction 

One Hind Opmlwi 



The Top 
American 

Joystick is 
now available in 
the U.K. . . . 

IVZffiSPECTRUM 

L 9*3.99+ £1.50P + P 

• Including interface to plug straight into the 
Spectrum. 

• The first Joystick to give you "Arcade" feei 
and control. 

■ "Jet Style " heavy duty, diamond cut grip, 

• Fire Trigger placed under your index finger . - , 
the finger with the fastest reflex action, 

• Seff centreing, 360° action. 

• Compatible with most of the latest Software 

including: 



H*pttt Sv^totw 


*T#*» 


f^tfitWIMft 


&MC*M 


Fe^Mnpr flr"W"w* 


ntorac. oon SAmtg 


At**lM 


Jrtirmn 


•*?;■•, A 


SStttHrpiw. 


B*mn Qinngr 


•ffOHVW 




t*!f S<mtn 


tlkrMlAtwt 


PSSST 


MM . rTp» 


Hvinwi 


Gabrfw 


ram ago 


tfr tior rwft 


5M**JW 


Jbrt>»A* 


X>n*M#r 


Co*flW 


TO* 


FramtAti 


t .1 ixn, i * 


Cpv*+t Sirtfft* 


'("••WY 


4*A0Piri 


Crtwftm 


Song 


4Mi HMl 


4rm*j*!t*lfc 


GHim*n 


ImlMiiBilii iii 


*-wl*i JO 


FifWflWU*! 


Spoo&vf?*'*' 


M>\ van fmpoiltd** 


4mm 


Oti+etiY* 



NOTE THIS IS ONLY A SMALL SELECTION OF THE 

MANY COMPATIBLE GAMES 

Also available for Commodore/ 
A tan I BBC f Oriel Dragon. 



5pecirum Trrgga Command 

VIC CBM 64 Trigga Command 

Atari Trigg* Command 

BBC Trigga Command 

One Trigge Command 

Oragrjn Tnqga Command 

Interlace Unit ontv" 

* To uh with vour owrv Joysticks win 

Spectrum 



N. B All prices mc'ude Interfaces where reou>r 



ALLOW 7 DAYS 

TRADE ENQUIRIES WELCOME 

24 HfiS CREDIT CARD LINE 



Amount 



M999 

£12 99 
f!9 99 
MS 99 
f1«.M 

ni.w 



f 1 SO 




Sole UK Distributors 

DATEL 




27 HOPE STREET HANLEY. 
STOKE OH TRENT 
^■™ TEL 0782 2738tS 



2?a YOUR COMPUTER, DTC€MBfR 1983 



CONTRAST.. 



who take a 
different view 



n** 1 *** 



TIM* 



Dwiiunorved by program* mat don't live 
up to ine«r glossy eipactattont? Coma io 
the Schwas* House that put* »h*«r 
program quality hnt Imaginative 
Ideas, prolessxwal programming and 
brilliant screen presenfalKsn make 
CONTRAST tap** Hand bead and 
shoulder* above i he f est No other 
range has oeen more thoroughly us*r- 
avai uatad bate a r ****** , What aver 
your inter e*t« CONTRAST | 
your complete tai>tf act tori 



ikja 



4 « i — ^** 



LlyiVfl 



MICBOPtaT: 



pomtoom i *»* ivicuiiin 14 a). i*k tat a »i 

fVu* <aJanj l* 1*» daa* in- tfi«i a*"* iM*o intw u 
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T AW HCAOtD HADKR I Iff *K IpaMn^k IS «l 
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ftama*. nan aaarat* awj wngih Wll i p»mi out a tonfl tapa 
o* prngrarm on Ma own tef naaajn^. ivtptaui «aoOpM>fl 
HOME-CAlC |4*H Spartr un> tS 99) JH.m*. «MKfnan 
a* in. apfia j a w —l um am lar tioma ar amall tuir ia 
b-jdoaiinc tn* i^momn nmadean b« 'njlttdon' 
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axounii muiV-rnonataMnaa. tublotaltina Mr an T n jut* o" 
nwih*. n*»i6***-*r*i Eaar*a uaa acon^itarM-apcrm^tf 
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t*o*:-iT of i* to &b Itnat ( 1 1 ,HQ Char aelanjM , .hi, 3fl (r— , tajj 
manu-anaralaa routmai tor aumno taartMng. roloj m a nw fl ate 

•JWiaOMWlWaiK tpadmnt, IS IB) al iaX a raally 

i in u iii—i i ii a anrri'ir-i -*" yaar 

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tcvii'no. i— yn raet a fl"nw n»J. opnari# h*»"l«atKW, I n a t i nW y 
* acjii«4 'nate ' naga akthovrf «ai of (•■! 

UTILITY ;i6* TXMi C5 *J» pw» ^omt J>*1 m raai oractis* uaa K» 
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b»fi» autocar* to* proa'ami rud oo(*. anO l»»t «a>i aaty-ls-uaa 
avvfoi/ti".* io »*** and tat* «ew> and aaii 4 froni (eur own prednsia 
} DOeFfhD* rtHkwi'u* t*»r oif«i«pl*>tNatli^Mfloanad* 
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a muMoal ipDr4-or«aia« , and yl tun Is uaa 

ULZATAON («K St*tn*t> T4 *5l r a r raaniriOlT ffhananl aai ptaya r areartjaarf 

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ni.t3ili.[i^qr.ri.[ip^th.t«Tiaw j«u r piua MaMhaaa. a nraal J-Qat y r aelan 
nam* ,n wft«ti3«.oi fUulindioutniftaiiT ■ ilka to D* ma ohoai (or a ehanga ' 
ADVE»fruaa ttLAM0>4aK Soactrum t* tbt anantorlainino HirmiBllon OB*.— 
nairn Wm *anfl W «wt • «v**a*n tram avM f> Varu . aaaatlad bv daaeiv eraaturaa 
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Specially made for most home 
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within a smart executive style case 
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The individually tailored foam 
insert securely protects your 

Value Corner 

ZX Randa 

TNl best 16K RAM (or lfw ZX81 

Anti wobble design with LED 

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16K Etpandabie HAM Pack 

ne 50 |p ■ p 5Gp) 

16K Plug-in Module lor above 

C13 95 (p ♦ p 50p) 

32K Giant Panda including Module 

£31 45lp-p7Sp) 

Vixen Ram Cartridge 

Maximum flexibly lor (tw VIC 20 

Otters standard 16K expansion plus tfvee other 

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£34.45 (ptpSOp) 



micro, printer, cassette recorder. 
tapes and manuals during transit 
A scalpel is provided to modify the 
insert for expansion units and an 
alternative insert can be supplied 
if you change your hardware in 
the future 

All components remain fully oper- 
ational within the case via inter- 
connections routed between the 



double layers of foam, so there are 
no unsightly Jeads. 

This is the first case designed for 
easy use with each component 
positioned for convenient oper- 
ation. The overall dimensions are 
138mm x 700mm x 363mm. 





Order Form 

Trade Enquiries Welcome 

Please send me (tick appropriate box) 

D Rotronics Portable Case at £36.99 (inc £2.50 p+p) for 
ZX81 'Spectnura'OficyVfC 20 (Please delete as necessary} 

□ ZX Panda 16K RAM Pack at £19.00 (Inc. 50p p + p) 

□ ZX Panda 16K Plug-in Module at £14.45 (inc 50p p+p) 

D ZX 32K Giant Panda including Module ai £3220 (inc. 75p p+p) 

□ Vixen RAM Cartndge at £34 95 (sne 50p p+ p) 

Aft prices inclusive o( VAT 

f enclose a cheque/PO for E 



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SMT 



Name_ 
Address. 



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^f"*^-* 



CHOOSING *Ǥ^ 

A HOME MICRO 

Choosing a home micro can be a daunting task to the newcomer, and wfth an ever increasing number of 
micros emerging on the market, even up-grading, say, from a 2X81 can be a risky and expensive exercise 
if the wrong decision is made. It is important to took at the real facts and specifications, and check exactly 
what you get for your money before choosing your micro-computer system. 



THE PITFALLS 

"DOfTT LET THE ADD OhS 
ADD UP* 

A number of large companies are 
offering package* lhal seem to be 
good value and low cost 
These offers usually have a hidden 
stinq inasmuch as the essential 
accessories such as connection 
leads peripherals and software ohm 
cany very high cost premiums 
eg. software for tow cost hardware 
usualty costs between £29 and £49 
(w a &Y4 cartridge!! 

CHECK THE QUALITY 
OF THE PRODUCT 

Raw material* are m* an area where 
comers can be cut and shoddy 
workmanship during ou riding c«n 
effect the uptime of your unit 
Areas to watch out for are unreaabk* 
edge connectors, cotiosion and 
poor quality PC B s Low quality 
components and bad design wfll 
seriously effect the reliability of 
the end product, and can lead to 
false economy 

DGNTBUYA GAMES 

MACHINE 

Unless you want just games and 
nothing else' Wpth a games 
computer you an? limited 
Some computers however, have the 
advantage of both games facility plus 
the whole world of computing id 
explore, as your interest and sftife 
develop A real computer system will 
alow you to expand your knowledge 
of the H» Technology world, and hdp 
earn its keep wfth Its added uses m 
the field of education, communi* 
uon and home business use 

SOFTWARE 



software, to enable you to reaftee the 
fufi potential of your machine 

KEY POINTS TO 
LOOK FOR 

• High Resolution Colour 

In general most home computers 
have a poor graphics resolution for 
detail Check on the vertical and 
horitontat resolution in graphic 
mode and multiply the two numbers 
together H the resuH is less than 
35 000 then the graphics can hardly 
be considered high resolution 
Without high resolution graphics 
displays such as those used in 
games tend to be Chunky « 
appearance 



• Hiqh Quality Sound 
Some onmputers claim tf> provide a 
sound cbann*! when in reality afl that 
can be found inside the computer is 
a small buzrer controlled by 
electronic pulses At the very least a 
sound facility shfHild provide more 
than one channel and a raise rhannel 
as weN (for gun shot effects in games 
for ejtampfel The best systems also 
provide envelope control of the 
sound rhanneh to produce very 
sophisticated elfc'cts. very important 
for generating music Also lor* for 
the ability to conned to external 
amolrfiers- 

• Keyboard 

For accur ate entry of programs and 
data into a computer It is important 
that the keyboard has a good tactile 
feel in operation Coupled v 
acoustic fe edb a ck the user is fufly 
aware when the romputer has 
accepted his her actions Also of 
importarv-e in a keyboard is layout 
a standard computer keyboard 
layout will familiarise the user with the 
vast rrvnontv of computers used in 
the world of business and 
professional applications; v 
important if the purpose of 
purchasing a computer is 
educational 

• RAM 

One of the most important features 
of a computer Ls the amount of RAM. 
or memory, included fn general the 
more powerful and exciting a 
computer program H the more RAW 
it requires But take care, all 
computers are advertised quoting 
the totaJ RAM used fn the system 
Computers use up a great deal of 
the* own RAM for stonng essential 
data and particularly in supporting 
the graph** display and the CPU 
If H is less than 32K think again is it 
enough^ 

• Computer Language 

ft is too OSf kuft to program a 
computer in its own binary language 
so high level languages are used, the 
most popular being BASIC. However, 
there are a number of BASiCs, some 
being very different from the rest 
A de facto standard in the computer 
industry is Microsoft BASIC 
Learn this one and you will be able to 
program in the majority of computer 
BASfCs; such an important point if a 
home computer « to be used to 
educate your children to face the 
techoolngv'Olthptii' 

• Expansion 

As your interest and knowledge of 
computing grows, you wit need a 




ChtxKtnq thr tiqhi , * i from throt t irta w*t i> 
mofM/ 4UUKJ Check luii specification pin 

prk, utM.ttHttf.Ptrftrtilv, ifcompt.. 1 . 
■ t to 'OCrl urn » need* 



computer system that win grow with 
you: abie to accommodate Printers, 
Disk -doves Joysticks Cornmuni 
tions Modem, and Cotour Monitor a*. 
well as produce hU*FI sound effects 

• Software 

The computer you choose should 

have a qrowinq sefeclmn of ii- 



software to makr the most df its 

c i pa b lh 

R e member, compuling (s here to 

stay. >bu can't learn to compute on 

a toy. or a device which does not 

behave axe a real coot 

In short, look out for a computer 

whk*h offers ad the points above, and 

you wH be sure of getting the best 

value for money, 






To find out which company offers 
you the right choice, with:- 

• Good value, high specification, quality 
micros. 

• A quality, 4 colour, plain paper printer/ 
plotter, 

• Communications Modem. 

• Micro Disk Drives. 

• Comprehensive and growing range 
of software 

TURNOVER... 



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ER/PLOTTER 

The Oric Colour Printer is quality engineered to provide 4 colour bard copy on plain paper, with 
superb graphics and text capability, priming either 40 columns or 80 columns 
It prints in red. green, black and blue, onto a 
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^ MCP 40 comes w.ith its own power 
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Before makintj vour final choice, check any other home micro in the same price bracket. 
against the incredible specification of the ORIC- 1 . 



i 


Quality of build and materials 


■■ 


Real computer keyboard layout and 
moving keys 






I Superb styling / Full colour display 




High Resolution colour graphics 
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Real computer language programming - 
'Basic/ Forth 






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Teletext/ Viewdata compatible graphics 
(26 rows x 40 characters) 




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Real sound - S octaves plus Hi-Fi output 




@ Cassette Port G R.G.B. output. 




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a Fully supported and growing software 
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ORIC-1 Setting todays standard in Quality and Price. 
ORIC-148K£13995incv A T ORIC-1 16K£99*>incvAT 

All ORIC computers purchased before 3 1st December 1983 MCP 40 COLOCJR PR INTER £169.95. 
comewttha£40voucheroffthcMuR.P.oftheMCP40Cok>vir OFFER PRICE £129 95 

Printer. 



Mresr 

ORIC Software 

Tht> U\b\ qrowinq success of ORIC- 1 means that an incredible number ol software titles 
are becoming available for vour One, With many well known titles In >m independent 
software houses, plus exclusive ORIC SOFTWARE from TAfNSOFT. you can now drive 
vour Oric towards its full potential. 
Below is a small selection from TansorTs range all of whit h offer superb value 



BUSINESS TOURING LANGUAGES 

ORIC BASE. ORIC CALC, AUTHOR. GERMAN, SPANISH, ITALIAN. FRENCH. 

MACHINE LANGUAGES GENERAL INTEREST 

FORTH, ORIC MON. ORIC CHESS. MULT1CAMES 1 . 

COMPUTER GAMES MULTIGAMES 2. ORIC CAD. 

ZODIAC. HOUSE OF DEATH. THE NOWOTNIK PUZZLE. 
ORIC MUNCH. SUPER BREAKOUT 
ULTIMA ZONE, DEFENCE FORCE. 

TAINSOF 1 ORIC SOFT WARr <iv,iil,ibk- Iron' your ORIC supplier and all good software 
dealers For full list of further informdtton conta< r 




TANSOFT LIMITED * a.UH MEWS. ELY. C ami is t b 1 4NW TEL <0353> 227 1 Z2/3/4 



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Thay'ra *H»qtwn gnM (teliflfHtf TO puah you* 

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tupptd in your compuiv'f macro-circuits you I 
>wd «a your mourtM to dafaat tha GPl/a aajctrori 
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Program a ***. 

Whan you gal your (man* bac*. you'd ba running 
for youi ill •gwn in Eitarmnator Tranaportod 
into th* rulunj you'd find thai aanh 4 a vbtv 
diHwani place. Robots n* the worid and th* 
human iaoa m almost ♦suntr. mmi only on* 
tarntrlafi. Vou hava TO*av*tham but hurry you 
doo l haw*- much mn 



Sttino m d*f*nat cornmanrj, your funds pooad at 

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Al samaa run on any ZX SPECTRUM and coat fb 96. write today for lufl data* of our oompma range of wftwar*. 

Selected titles are available at W.H. SMITHS. BOOTS, JOHN MENZ1ES, and at all good computer stores. 





^iazr^s, 



IF YOU HAVE A BBC MICRO 
THEN YOU NEED 



is the newsletter of the Inde pendent National BBC Mic rocomputer Users Group, If you want the best source of 
informaiion on (he BBC Micro you can't do without I I . No matter what your interest - hardware software, 



business, games or education then 



seres 



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^izjcr\^s^ 



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a sample copy for £1.00 and an A4 SAE [17p postage) 

1 UK 12 Month Subscription lor £12.00 

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BETA BASIC 

ENHANCED BASIC FOR THE 

ZX SPECTRUM 16/48K 

26 NEW KEYWORDS - 10 NEW 

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48 A Newfound, Basingstoke, 
Hants. ,SG23 THE. tel;(0256)780696 



YOUR COMPUTE*. DECEMBER 19B3 279 



THE 




CHALLENGE 

Are you game enough 

to play? 

Interesting Games For 

Interesting People 

From Anik 




HOWDEE PARDNERS 

THIS here's Prospector Jake, I sure am havin' 
one helluva time trying' to peg my claim with them 
Injuns a hootin' an a hollerin* all over this here 

territory. 
Can YOU help Jake peg his claim, dodge the 
arrows, avoid the tomahawks, n f plant his 

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YIPPEE . • • You need all your skill & 

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Amazing Arcade Action for £7.95 incl. 
SPECIAL OFFER: Order California Gold Rush / 
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Bellinge, 

Northampton 




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OVER 300 GAMES IN STOCK! 



|> 1B£ .nrj 7 A FW OF 



KtsKts is* B.fs Bruns nut tut 
— wiiiKB's wkuaaas, *bi £4.95 mm 

OUST RALL00E3 1st - 



SHTIEE1 1« £5.00 •" iMWI 
B.f .1. 16/*«E X5.95 »" *t>r. 



FOOTBALL PUuUOBF, 1M £6.95 **■ A*F 

ntQGccR *fl* «.7S ■jqxole ptrni i«e £6,90 BriDtua +ai £5,75 •*" 

Ar.ir.-jt BKI531LE DEFER CE 16E ».» |sLU Z*fl 161 65.95 ■tOIQ ARE £5.9? 

galactic *Btwctoie 161 «.95 *•* M**«i« Bust ctrsr for lawica *«a:£S.5o 
m pKnxmri a« £5. jo ■ raider or ni corses ki» uk £5,50 |iuim - 

4« C5.5C *** irtlB B? D OQRBAT SORE ««E £5.95 ■tMEIT 1*5 £9,45 ■COSMIC 



4BE £5,50 »** Artlo B? D ™HBAT SORE *«E £5.95 \ 
DEBRIS 46* £4-95 BHXajOTW pjBfmrCTOLS 401 £5.95 

atlas 11 *ec £9.95 **• H j^t Bgotou k* £5.50 

&INKT HRAKU t«I £5,50 ■lILLDt IOE0 ASK £5**0 

£5.50 ■aaomot uscttE 4« *5.$o 
mmu *o £4.95 



S4UII4K9 161 £4.95 - 
PLUGGIT 4« £5.50 - 
DODO 4SE 



161 £4.95 

WW 4S £5.99 



cosmic en bulla 



SlajiJ cantd, 

corbusiof am £4.95 

HIllB m HLiflfit 401 £4.95 

IRATE AM £4.95 |»U DIWEE - 
II £4.95 •** AntWMt* >I1M4»I* 4«E £10 ..... 
SBWSHO 4« £10 |«ITQ JAIL 4« £6 ■KOTT plus 
E.T.A. 16K £5 ■"* A.M. A. ■»t(kt i Wf 161 £5.95 ■•■ ■■■ ■■ 

ban Ut ■ rUKSCMUTfil 161 £5-95 *** Buj-Brtfr (M4IIC HUB 401 £5,95 
5TTT 14.L £5-95 BpOOL 1&I £5-95 ■OBTEUJ. ELECTIOf ifll £4.95 •*•*• 

HI DEB atl 16* £5.95 •** CCS. B a U03TSK3j 4U £6. DO - - 
rUTSUtt 4fll £6 BDilL15 4M £4 ■cOU CMOFTSfl 401 t* ■ 1D» OKU 161 
BRITISH UWUJTD 4« if. BsPrawjUR 4«K £6 ■KOiJUUS 461 £6 ■ 1TT£ 
AflfS-S 401 £5 >C*»SLOT 481 £5 **• O jPjS. B BOST BOA 161 £5.95 

goifij i nut 161 (5.95 ■srscttttn safajsi 4*1 cs.ts ■hxtbisi 1*1 - 

£5.95 •— OP Softw HstrPU CHESS II 4H1 £7.95 ■ 21 MLlUftMfcl 4Bt £5.9* ■ < 
•* CjK.l. ■tXST H1TCB 4SE ££.95 ■ ST4H (MHtt SlOUTS 4IK £4,95 ■ DRS1T 
W 4 pi £5,95 ■ WOODS OF «FTEa 4«E £5.95 •" C»HH alBCtHKL'S UISSI - 
IM ££.50 BlKfASIDi OF THE MOT £Xi.TCHiS ! 4ftl £6.50 BltU ISUil) *J» C7.50 

KTlflMH KLSrn 4BI £7,50 ■ KAILS OP THE IHIHOJ 481 £7.50 
itt 49.90 "■ D.J.L. ■rnoodT 161 £5.95 *•* lit fron^c* ■tkw 16K £5.95 

— aOOJ 4 5P1CI Clfifiin 4BI £4.95 ■HLil4£5 4B£ £6.95 ■TB4UI I6t £4.95 ..... 
SPUD TMSSL 4« £5.95 ■aFFU J4H 4W £5.95 BSTiB TUB 5000 4M £4.95 .... 
HAHI. CHKdE 161 £4.95 ■JVHBLT 48£ £6.95 ■?& T4VI »6* £4.95 ■ nlCT*TDK 48E 
C4.95 ■mLIHIH 161 C4.94 ■•• FlfltM* ■fTHAKIO 491 £5,50 B^OLH* D1I*UL3£ 
ttt £5.50 ■nU ILACti HOLS 161 £5.50 *•* Olltoft 1 5E UII DP OOLD 1«X C5.9S .. ' 
K40IC 04STL1 4BE £4.95 "* HwfM HHtAntHO* 4.T.C. 161 ff.99 ■ WEST 481 — ' 

~ 5J> SF6CB VUS I6t £5.95 ■piQRTFl-iri Vtt £5.95 BUCBftUWOIT 16C £5.95 .. 
KdtMtai OF TW W*W Itt £5.95 "• I.C.L. ■■TtMUT *S3*tftT 161 t4,95 "•*«• 
lj&*j,ln * ■^ZOOM 46£ £5.50 |£IP 24P 4S £5,50 BjIMPIIfl JiCt 16£ £5.50 ■ PfDUJi 
>*•!, "■ I,- ■ ^< MMHM A49.S0 JflHTiffTH if* ••■.■ ■ MUDIUS l(K £9*fB 

*** iBMCt ■dBSTHOTDI 16K C6.50 |zj fRgJ 461 C6.50 BtHX QfflSf 4BI £6.50 

H4ZE tai M flOKA 4«I £5 ■ 3PK3U1 161 £5.T5 •** Jl 0r^ T4 B?D «»TK 16£ «.9S ■ 

<•* Limii ■rALKALU 4HC £14.95 '•* liOtmnfiia ■hK4I KFIRE 161 £5-50 ■ TTJUFT 

OF ARUOIS 164 £5,50 B«ARUMU> 441 £5, SO QSAHUUI VAUUOK 16£ £5.50 BjOKniT US - 

4«C £5.50 ■jLBMHE 464 £5.50 •» J^gg^gg^ > CTBOHKUT 164 £5 ■ J5 |_ 

£9.95 *•• H^bouTT,* ■ <« BaOMII 4SC £14.95 ■HMzTftAn* 4 Hi £6.95 ■tXRBQil WXtth 

*0 481 £*.« SHSLBOOBU BMtf 4SI £i", 95 ••• Micro— «■ SlURA CftlBi t6I £6.95 BlUUM- 

D I8»IS 164 £6.95 **• WUPtt44«> ■SOUKIU I6t £5,50 ■wfcCHWIf 3 C45iH, 161 £5,50 ., 

~l KA5TBK CS133 4W £6.95 ■OBSKIC H4I0SHS 161 £5.95 BMAU HUM* 4W C6.95 

K4XTU4 II 461 £6,95 BoRXir BiUTAIK LTD. 461 £6,95 ■ IIHUU T AIC t 401 £6,95 ■flilC I6i 

£5.95 *** FtPtuti* BiTARTHM/WJICIfflAJf 4W £5.50 *** »r> flmrttlmi BsOMIWItS OP QUO* 

46i c^.,95 |QBI 1* 5D 4» £5,95 BM> IBM*! IS/4* £4.95 B^^^S «« £4.?5 «»**«." 

ij^uji BTiuxsnnsioi 161 £5.90 |«xnr 4U £5.90 |usmt <bi £5.90 |ioii} <si «.9o . 

B HftOtSm 16S C5.93 |ltwnt CUI 161. C5.90 BufUAZCHW l&l C5.90 •" P—m?ft Bcajlv- 
MU 4« £4.99 "• f h \ ^f Hint B™* POUST Iffl £9.95 Bo«*OT OULCK «SX C4.J5 B "^OlC - 
KOUFtAIR 4flE £449* B^HAUOB'S Mi* 4SI £4.95 U^tl^tt'a QOXST 464 £5.95 B 00 * 00 * * M — 
HI BUCt FLAJtIT 4fll £5.95 B^WTKtK PtKXSl BOOK 161 £5.95 |kHII0B 161 £4,9! 
Till FUZ2L* 161 £4.95 •** Pft»t»m B ^XV SPACS 40t £7.95 B^^AI»"TU 161 £6.95 ... 
N4Xi PIT 161 £6,?5 B^IUK t*t £6.95 *" F»l«a B™1"3»T H0UU1 161 £5,95 BHoRACI 0OE» 
SEIIR4 161 £5.95 BMOUCE 4 THE SriDBBS 161 0.19 B FLICHT 5IKUUTI0E 481 £7.95 BcWPUm 
1CUBKLX t«l £15.95 •*• FjfCQB BlUUIAWAT tti £5.95 ••• frot.k ■ KtfFf gB-Li LLP 4« £7.95 ,. 
AIULIREH 161 £5.95 B KOlfflHTllIIil 161 £5.95 fl SPKCTKAFEDE 4fflt £5,95 *** ■ ■■** « «**«■ *« « 
UMt Ctd* 16* £5.95 B^BT SPACE 4«1 «.95 |)U^ UKATn RACE 161 £4.95 ... 
r HUET 161 £4.95 **• F*rf»otlgn iaflym BoOTSSIT I 161 £5,95 HM I II II H 



H you *4v»0 t***** 4 rnlft MfnC* ll»4* FRftPOST w oft*. HAd f*nf» w*»r lorm wHh a F«ST CLASS 
STAMP lo ll>* tn»«p<ni «M<ni ■ w* II wnd ro«f gam** fry ralutn. Iiftt cl*«* 



Puffia lofllia 



IVAELOCI OP P1AET0F MOWTAIK «K £6,9$ •«■ guicHllT* 
_&WES PEBieRER 401 £14,95 B> B A" 7 AFTACE 4fll. £6.95 .. 
WGAHO {«« PtRA) 44» C6.95 BtRAXI tftl £6,95 

BJ1RBI 4«X £6,95 ■ U 1 9UU > S *** ***9* BlS SXKATiST 
141*6.95 |affi»U>S OOFl 4j» *t.95 |uKK 46K - 
££.95 BfEttWB'3 UlJt 4« £6.95 BISTRO BULSFBt 161 
£4.95 BlSR OX3SFLATXK 4S £6.95 |il3I^Ul 4JI - 
£4.95 BmEBC-Dt'T 461 £4.95 BTIHniTE 4Si £6.95 ... 
BriUB^T 161 £4,95 B" 1 ^^ *«£ £9.95 BKKTK>R atom 
— 5SC4FB R.C.F. 161 £5.99 B&1C£ 
B«*«J«ra l6i £5.99 I^AIXJXS 
161 £5.99 BcnTMWOS ttl £5.99 *•* ^Tftir* ^"tt^ MflatfT? -^ OF 
DBF 4Bt £6.50 BlTWOIBLE I3LAIO 481 £6,50 B™I OP TBS 113* 4S1 
£6.50 B^^ 01 s;T +** X6.iO Bl«sr'K3T AJCERT 441 £6.50 B^TZfc SPT 
48E £6.50 B THAK3TLTABIJU! POWJffl 401 £6.50 *•• Hoalt B 3 «*-l^ 17i 
161 £5.99 BSPECTU SJUSH 161 £6.99 B5D HM3TBI OIASZ 16K £6,99 .. 

OtMHfi CLiiH 161 £7.99 B 13 * 1 ^ *^ *W»FB8 16E *5.99 •*"*" 

3LliHraoft BOUHTSH 161 £5 . 95 f§0OtXKD iKiCI 16E £5.95 B^tlSI 

RATS 161 £.95 ^SLlfttSKJ StS 161 £5,95 BkV*CEIB '61 £5.95 , 

_ AJOUOEDDOI 161 £5.95 B-KXTUdtllATOR 161 C9.95 |H^;i.!i IK- 
PO&SIIU 161 £5.95 BbAAI* BWAOB 161 £5.95 flaTARSRLF arSEFillSI 
46K £5.95 •" 3oftai B lf!lU£ BU UJ S 161 C*»*5 B 05 ™ 1 1tl ^-^ ■ 
■OWrnS IE HELL 161 £5.95 |»IOI 164, £5.95 BtfTtiL&Aa 16k 

£5,95 "* Snaaalaa EMRa BCROlSIBa OR RRSAMAT HI £4.95 

H.BL1B& ALLET Ifil £4,95 B 6tLA « 4«4C« 4fl* «S,» B"-^!-- 

4At £5,95 ••• Tltm B *™ 111 flCZ ZERO 161 £5,00 B**-?^ 

SVARH 161 £5,00 •*> yH,|j|t.» |UHU JEIKAK 481 £$.50 B Jtr:; 

ATAC 4H1 £5,50 B^ITFAC 161 £5,50 B-***- & '61 £5.50 

PS3BT 161 £5.50 |COOttS 161 £5.50 "* Hi rain 3aa«« 

TCKP 161 £5.95 |«LF 161 £5.95 B*8E£?WAU( 491 . . 
| St AEFlRk 441 £5.95 B UCIH KAEAQ1* 4SE £5.95 |WJ}i^ 
4fll £5.95 BlAJH 4** *9.95 B ^CtiALCW ATI 4€E £5,95 .»..! 

SPECT80F 4*X £5,95 Bl<DS* 4B£ £5.95 *** »■■ —■ —— 

WOrtforc* B^E^BD ATBICEfl 161 £5.00 B^AlU EETaM2 Ml - 
£5.00 B 1 "** BQCS 161 t5.50 B^l^H EOORyiASE IKVa2£kS A 
3CRAI1JXE 161 £6.50 |ni^U 401 £•>, B WW - 

4B1 £5,50 B™ EOT PASS SO 4H £6,95 B TW ^I AM I 

— iAjPlyllllF OP 9£ATK 161 £*.95 B *»JA 

0VR3E 4«t £6.9! BtO^SIP dP DOOM 461 £6,95 |(^U- 

tOEASB ISiulRU 4BS £6.95 B< i > MLM » APFLil 40E £*.« •• 

'"""IB B c, ' fl ' s ^ ^KBSS 16/4AK C9.9J •* 

CKjat*rl«Li Adrcnlur* Jerlea) 

mh 44)1 £9,95 B^> THE OOLDlJI 3A70E Bt-yTrf;, f»:3 

HACSIEE B(3)A3UeCW OF P£ATH PAB7 1 B**'*''- lt ' ; - CT • 

OlAtH PART J BtDOCAFB PHOF PULSAR " fl 

~1?}F1ASAB1L.1TT EXPXRIK1BI B^^FHX *1-Ai& 1 

"|(9)FEi«a>S ft AEMOIEHA |(lC)?t)t tljtiil! jl *iv .t^ ■ 



All pneaf mown inrluda VAT b postage 



SPECIAL INTRODUCTORY OFFER! 

lonhf «rtlh Iha coupon] 

CI off purchase price far 2 cussatles 

£2 off purchase price lor 3 cass«nes 

ItArtWACt Item Ih* total on lha erdai turtn) 

^__ , TOTAl ENCLOSED 

Flaaaa sand ma voht caUHog only 

:b*i SOp FKcnp* « P I 

Hfach I unoaraland hhU b* rafutdad vfUti 

mf t*«i purchai* 

fPmmmmb*f to 
MO sljmps ne«ctedl Jn»t ut* ntfr»cl c«a» 
rh* FflEf POST •ddi«4« hstow -nw**"*; 

*•" — " m#it cnacii <t poiiai urdni pavaola to CHA5H MirSfl 



llWne 



CRASH MICRO. FREEPOST (No stamps). LUDLOW. SHROPSHIRE SYS IBR ^ 0584 5620 



4*K ZX SPECTRUM ADVENTURES - PICTURE GRAPHICS AND COLOUR 




Siii 




i .irv .( krujjti! of Camdot, 

searching U» Mci trea- 

>ur >ji >ou will 

dbcover the WiicheV Tower, 
uc a Princes hclii bv the 
wnked v frill £5,95 



ie entrance In 4n 
ancient pyramid blocked bj 
rock. Once iihuk. sou discover 
tire fiwra*. tee rooms and other 
irap\ scl riv ihc builders to 
Pharaoh £4.9$ 

16K IX SPECTRUM GAMES AND PUZZLES 




A rope above a inl I 

mm I his Mjjtit 

>s ii 'Legends lell 

of v ul treasure but 

if potM3aou\ spiders. ii/.ir J-. 

and maa.K M •orll £4.95 




An ok) descried mining town 
hold* thedues to ihc locxrJoaof 

.< lo*t gold mine. Once in the 
mine, your problem* are not 
OWf - ihc root creaks aijHTnin&ly 
and might cave in £4,95 




Ji » n vou are 

pushing rabbit Id of 

cmtots Sec hi s-v* nunv yon can 
baj: undetected b%, the itame 
keeper. Uijt'i iJde 

£-195 




THE 

SPECTHUfn 

POCKET BOOK 



DM OMttW of the h 

jjitMTi (including 
Outlc Walls, <.rc.it firv 
London ' machine 

i5.9S 
Book available veparaieK £6*0 




I Mm® 



TTie ti.tditFtni.il panic wilh superb 
screen presentation Store points 
b\ making ihc two ends add to a 
multiple oif five or three, flic tim 
ooe to reach 71 potnti wi 

149? 




48K ZX SPEC TRIM GAMES 



The computer hreuks and shuffle* 
a two by two coloured square, 
whiUt won watch the moves il 
make*, You must then unscram- 
ble il v-rnble (lie original 
squa ns. MaxMne codod (4 .95 

16K /AM 




1 1 > find the Black Planet you need 7 
picto 1 4 Lite I idderi on 

rut ptinels, and neoiinji dd- 
fcrcni pu/A-v i< i he solved On the 

yuu t%hl off lite pirates who 
jn mghJiIy more dapcrair £5.95 




You arc Sped tastes, battling in 
the arena with Gorgon, who** 
vtare tan rurn you to Muoc 
mover the Jott chalice, 
must jNii win a swordfighl v*nh 
na, invdc hi* cave £4.95 




rfl 



urn EON ESt' 







T hrcc dimensional simulation of 
the sport of orienteering. Display 
it continuously updated » you 
run. Ideal for map reading; 
practice. tttStructkMi, colour 
map and cassette £9,95 




For the ZXB I, three adventure*- 
bWk and v Magic 

■stilus, Pharaoh's Tomb, 
Greedy tiu|ch t as described 
above Superb value for mi'' 

iSM 



w^w w^ nnn ^^,^^-« „ rm.-^^ Dcpt<; FR EF: POST EM463 (No stamp) 

PIT PDC ASWOrTA TT^ 1 72 KingMon Road. Ewdl, Surrey KTJ90BR 
A jlXjl* * ^ oTlkJkJV^l^alJ-aViJ^kJ Telephone 01-3930283. 24 Hour answering. 

Prices include postage (outside Europe add £ LOO per item \. Acta* ami I iw cards >v rkome 




vtu 









"WE'VE GO 




IT TAPED 




no 6M J 











MICROOCa 



t 



m jqi Truro Road. St Austell. Cornwall PLZ5 5JL Tel: 0726 3456 

All cassettes £8 each 

Selected lilies available from larger branches ol Boots. John Menzies, Spectrum. Computers lor All and all good computer shops 




aPitWTflU] 




Sif^l 




TLE 



IX 



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W^. 



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• 





Mulberry House, Canning Place, Liverpool LI 8JB 




FROM WHITSOFT - NOT WHIZ BAM POW ZAP, BUT . . . 

HIGH POWER STRATEGY GAMES 

RESULTS ARE COMING IN WITH .... . 





Have you chosen the right Party Leader - How well did you spend 

Campaign Funds — Can you survive the scandals — Will your nerve 

hold on the Election Night Special T.V, show! 



RACE AGAINST TIME AND THE ELEMENTS WITH 

•IL ■▲■•H 

Haggle with shipyards to buy your Oil Rig - Tow out your platform - 
Race your com pernors to fay your Pipeline - Watch the tickartap© of 
World Oil Prices - Can you make enough money to avoid Demotion! 

An Dnuon and Tandy fe» 16 95 One *> C7 95 (including poit and packing! 

Phf«»frru*h me Cttpifn ©f ELtC HON h £ V£R B«d 

of OIL BARON lor itw 

□ On*4aK QOr»gon32 Q Tandy Color Compuw 

Name 

AOdrttt 

Pot i Codt' 

I cncluvf cfwnue.pwt.il order value t nwta payable io 

WHlTTlNGTQlV HOUSE INTERNATIONAL LTD ajjajjaaj 

4 J 45 New Broad Si' set. London. EC2 L^^^ 



S pectrum 4Sk 

HAKE VOIJH IJM'\ TV HLHS! 

-.™ LIVE ANIMATION 
& MUSIC 

SAVE them. . . 

a amiii riii»m and I4MIL1 r Wi 

*iin Tin rt*T TH** p*(II >** — *v' 

i # >m. I J a*s«! ( £7j 




itin»i nU urn 

A tmmiiin nmtttt »l * 

# IHCUt. MUCltl-EWOaaAliWI WQ 1 timuytlll ALLOW IUV loi ■ 

• CAtli-VP aat ymtn or c**t, mciiDiac uru, nklicoMcA 

i«b « Moir or L >tmuimtL ia * muici or *»aai,t i^'Call*! 
Mint t«cn aii ir comn ■ banai o»i* c«i At ip two cuhmii 1 

• T»tT WALK, It'll. CLIMB A FLV. 

• BlILU IOD*Ca, LDlltlll CtC. IK A ILAIN * (HAAS tKLK 

■ OP TO It Hint, ftn 'rlLB-, on lum IP toy'hi a «g«tt Bte.1 

• HACK CHH4CIII1 'irMl- 1. 11*14 *»IHFl*IIU>t A* IN tTKirt. 

• rtLL LUMfL tlk-KiUlffTIIIU TO AA*A rut HtllSll Ltlutl 

■ IMtAJn pLatbalk. loiriWL. *»d PILITtV* *» i'Ji 1.0 all- . 

• noil coaatUDi tm * tlT'lTtOU, VIT1MT <KIIC 

■ coariiii TUVA ut> uhii MHtfl lit tPBGM.li taiilucrivl 
(iKiatTif HCtlC tunfoa«A, VMMa »Uu»i iui to liiIi> 
tdinci AMD adit at kach HOT! . . I* iui ilU TOI 

A ildll at lu Plat H-vOtt lunti IO -CaLL-I'p' aT AIM tint 

m * trail . . covet rta otvM iac« a rtjmbkh m ninoa* 

• NBA AT ANT fill, IVIA WAILIT HAKIAO A *l>ILpV 

• TOU Cap «wm AH it r-tnnCtlvt TO MILMHOf, «u*P« §T«. 

• stuh.im «olu on CgMtirtTJ Anoarutpot mute . . . MiAT m Aft«X a mm' 



®| i | I 1* HlltllllAI! rAI 

pinehurst data studios -» 
IMJfQAT AAl 



AAA 

■ >>» * i. 



>N t»A irtctiiM U.Mt 




"THE" 

MIDDLESEX 

MICROCOMPUTER 

CENTRE 

More thence! La* prrceV Fail delivery* Advice' 

WORD PROCESSING PACKAGES 



■W&IWM 

C^CahaU* 

£530 'v.:!.' 



CBWISftHnat 
CHwlMlfAViyv 
.jam air Ui. 


r*ei 

lOQKQacOnnr 
uPnw* 


£725^ 


£1150 



Arto fUKhrd *l taw pnem. 

Spactmm * Dragon * One * BBC * £J«» on * Colour (*«** Ufa? 200* 

We SO Slvtor Patch* wwy £»3« 

rNftMghiTOrVP««i • I Lav. L>n#v Jay^ti C*±*««t4 m. Daci. Dual 

Covwv Fumftn Leads Everyttwvj tar ttpucnrjutrrgwrwr 

*J GtMiara. Dragtft Mitred** t lefj^m New r^oerartort. LiamaWfl MctoUm f tm 

AiUTBrft *tA«l tAuQ (!*•¥ ulfwrs 

Crv* * Ssitmi CHI Vettcttar. Mirri lor Arty ecxjDicorj. 

lUpxktrftird * fc ctrii * JvTMKan Ltr>tu * instant Geo! 

CALLERS. Opervfc data a w*«*. Eawr parHATj outSnlc 
(HALHL^ .rrwwiAAti utdtf iVuArtfacjMmawtHabit' 

SCHOOt-1 (JnVkAi asa^Lwars imrj QJCajr, •eKornt 

SCREEflS 

M a C W OO O r< A»WAUTERB 
« Hwah Avtnui. nog* Mpbl hoimaaotiotAiwusExrt^totfMjJOtM 

(fAL»Ar ( ygiifi4>**-* 



286 VOUH COMPUHS. DECEMBER 1983 



Jj 



11 1 



7 



T 




OVER 175 
DIFFERENT SCREENS 







f 



— M : 



UC 









jm*9R^: 



■ ^ 













- J; — t 


■ «^*^ 




■-at t/J iL,,^ fct^Sftm 


, 


EAT YOUR ^ 
HEART OUT 
BILBO! 

> 




Versions available now 
for Commodore 64, 
Electron and 
1 BBC Model B. 








Twin Kingdom Volley H a 
break fhraugh in adventure 
program*, a highly complex 
journey through over 175 
different locations to test your 
ingenuity to the lim<t, using 
simple English commands 
In your High St reel now 

Price £9.50 

Bug Byte Limited 
Mulberry House. 
Canning Place, Liverpool 
Dealers contact Matthew 
Thome* On 051-709 7071 
Registered Dealers can order 
direct from CBS Qtsrribulton 
on 01-960 2 155 



JUST AROUND THE CORNER, A NEW 




HI Atkth"t*>rAI 

lh* t IwriC, m* program advrnlun. <jnw fur iltr 4**t Spin Hum jixf I** ZX-Bl 
icmputi m V.. nftWM (otttflton n ^■mpfclr tvritaut it. 

Kl At k t kVMAL W an rtirlU-nl grafthH* *d>rnlur«- and t wrfl (hmighl .hi! 
[utkj|tr iSimlaif tt<tff, A|wil '$.1L 

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M'K IHUMlBK l«K »i p*.«f#nMr. >,< pwti , . , ««> £7,50 
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IVh* fijiv rmnr lor Urvn n| .in jdtrntuirr* 




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RANGE FROM CARNELL SOFTWA 



) 









-H« WKAIIHH MAt.KA 

IWIirM htwnlij* Wrn dr«tritvrJ. 1 hrllacl t rW*l ■■< KrnilK K*» hrrri foiii^httl 
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Vokjnk IKiri|tv>>n t'ting high it-it>tiilu>ri ^riplm* in>J ((MntHntng (Ik i-»-J ({tulrlirt 
ni Bl*t < iimiI *n4 V»U«nk IKiiiK«<in n* wtil dlkiw iwi In hc*«im» pari ml 
I hi*. Idk «l rrvcnjcr 

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in%lruil»*in mjniul jinJ bnoL iti'ijAtnyf lb# IrKftirv «l ihr \h»A € tunflnrnl jfkJ lh# 
nv»n> vprll* >tm .--ill K usrn« fhfraqthtHil thr M*"- 

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C #rrwll Sr.l(»*rr I i.l Norih Wcyjjwft fnilu-lfi.il l«*f< Vtiitrtry Ri«*tf, Ifcnlum ffinj KITJ M't 

Pw h l i; C(M*t*t u-. !<>t >uur nr*rr>l ». fc«lrx*Wt, 



CARNeLL SOFTWARE LTD 



Now a business 

spreadsheet 

for hom e comp uters 

Clear and easy to use I f^3Bl ^^ Formatting by cell 

Global column IW^I ^4' ^^^Kf 

width adjustment ftflfllk " ^'^HMKt Com P rehensive 

■ — « |w^iS- H instruction monual 

Variable individual M 1 RJ 

J 1^^ -I g^ ■ HJ — ■ — columns and rows 

Insertion or deletion ■ 1- ' juu_ "Jl m ,, ■ ■ ■ 

rt f^t«c« rt J I 4Br- Ji ^gpS^ l\l m Horizontal and vertical 

ot rows ana pEL ■ M^ w Wwm t'tl k r j 

columns ■ Mi ^i, 1 K I 

merge 1 | j^^ ^ J B^ to display your results 

22 mathematical ^^^B to^J^ff I fcj *"""— numeric sort, highest to 

and statistical functions — — fetaM f lowest and lowest to highest 

With Prod icalc you con use your 1 6K VIC 20 or spreadsheet to calculate the best buy. 
Commodore 64 to carry out soles forecasts, modelling. Computer Software Associates' products ore 

cash flow projections and much more. available from good computer stores or direct from the 

Compare the professional features and power of exclusive distributors — Marketing Micro Software Ltd., 

Practicalc Plus or Practicalc 64 with other spreadsheets. Goddord Road, Whitehouse Snd. Est., Ipswich IP 1 5NP. 

Compare the price. You won't need a Tel: 04 73 462721 Telex 98751 5. 

ALL THIS FROM AS LITTLE AS £29. 95 

Dealer Enquiries Wefcome, 
An other great program from 
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^^ associates :::::::::::::::::::.":::::::::.::::::::::::::::::::::::::::::::::::::::::::::: 

For more information send this coupon to: Personal enqu iry (**»«**) D Dealer enquiry ipj*»ti»ck)Q 

Marketing Micro Software Ltd. GoddardRoad, Whitehouse Ind. Est, Ipswich, Suffolk IP1 5NP f 

2*0 rDUH COMPUTER DtCiMMR 1983 



CAMEL PRODUCTS 



8 

z 
< 

s 



BLOPROM-81 




. >»- 1-11- tin - ■*** 

■ t»»r- i" ••»• - mm 



.. t"*i* »•** in* It tJ*» 

iw in •» 



Hi ». n*> t'»- •■'< l< 




A uniquely sophisticated EPROM PROGRAMMER isiiki! 
by vanom labs, incl. Sinclair Research. 

B LOP ROM 4 1 

Eprom programmer for the 2516, 27XX single tupph families. 

Ves, even the 2^128 from Intel. Check, Read, Program + 
Verify all or pan of Eprom. 

So immeiueiy u%cr Friendly you'll hardly need the manual. 
Designed for ihe beginner but include* a single key entry route 
for the profesiiowu Supplied a firmware, the nvc driver 
routine alone is worth more than the price of BLOPROM-81. 
No Personality Cards or other additions, jusl a ZXBI Several 
inbuilt safety features. On- board Vpp generation. 28 pin ZIF 
socket. Cabled connector and extender plug. ABS case 
Note: Can provide up to 56 inputs or 40 outputs as in 

i o r»,w 

MEMIOS1.2 F»l«f than a Floppy. 

Enter than an EPROM 

A 4k CMOS memory and Lnhium 

battery unit. Saves programmes upio 

10 years wfthoul external power Plug 

i| WO the ZXtJll and Hick a swilch and 

your program is ready for retrieval A 

simple PRINT USR . . entry loads 

your program into RAM. Reside* in B-12K but C*0 be moved to 

IJ-IGK. Comprehensive noies * example £29.93 

CRAMIC 81 Banish the Whir, Click And Try again of ZX8I 

Systems 

I6K CMOS RAM and Lithium battery in cabled ABS case. 

with expansion adaptor Powers off the ZX8I when nw*bH 

Resdei in 16-J2K Can be used like an ordinary l&K but can 

alto retain program upto 10 years. Ingenious hardwire' 

lofi ware allows swopping of RAMs from program £1*.W 

PtO-SP An 8 * 8 line parallel Input 'Output card which lets 
the Spectrum communicate with external systems, Connections 
on J6 pin sockets Mating plugs supplred £11,50 

PIO-S1 At PIOSP but for the ZXftl £13.00 

DREAM -It Full 64K Rampart with link options (O disable 
OB I bK Plus a 28 pin EPROM socket for VWtflti 2*M and 
even the iaiesi 27I2& from Intel Put slow Eprom option 
Profession ally btiilt and rested In an ABS case *ith an LED 
mdicai or £49 9* 

PROMFR-tl At last! A low cost reliable programmer for 
2516/32. 2716/32 FPROMS This is ihe solution io jting 
EPROMs instead of tape, Requires 4 > PP.1 batteries for a 
regulated 25 volls Remarkably prices at £19 .95 

ROM-I I Provides two 2* pin sockets for up to SK of EPROM 
memory in the 8-I6K area, Epromi are permanent memory 
which require programmers tsec above) to write them. Can 
its* 23 16/32 or 27 16V 32 t!4.W 

PR1STER/MON1TOR 
ACCESSORIES 

MSB Monitor Stand for BBC 
micro. Silt over the Beeb \V u 
I2"x3-75"P*P£3.50 f 19,93 
PSS Standard printer stands for 
OKI. Epson etc. IS' x 12' * 4.3* 
H-PL3.5V UfcUS 

PSL Large model 17"*|4.5"* 
I.T3" P*P£J.S0 £19.95 

WC-1 for Epwn MX-I00 

etc 21* x 14- x 3.7J" 

P + P £1 50 

Cttitom Printer bland* tor 
larger printers P.O. A 

POT Primer Output Tray 
for 1 1 " fanfold paper P * P 
£3.50 £16.95 



LK.VATex'fl No VAT on export- P + PUK.Free 
Europe + 5"St — Overseas * 10*"*, 
UK & Worldwide dealerships available. 






AMSOFT 



MACHINE CODE, ASSEMBLER, 
AND BULK DATA HANDLING 
SYSTEMS FOR THE SERIOUS 

SINCLAIR USER 
NO EXTRA HARDWARE NEEDED 

AM-ZXFILE allows you to create data files of 
unlimited size on cassettes from your own basic 
programmes. You can read and write files in the 
same program, and use tapes just as if you had a big 
machine. Ideal for club records & small businesses. 

ZX81 and Spectrum versions €4.00 
AM-ZXSP will load a saved ZX81 basic program 
directly '"to the Spectrum, leaving it ready to run, 
save or edit.. No more hours of retyping those old 
ZX81 programs. Just load ZXSP into the Spectrum, 
and it does the work. 

Spectrum version €6.50 

AMZXMON is a superb machine code monitor and 
operating system which allows you to create, edit, 
run, and checkpoint machine code routines, and to 
save them on tape. You can build libraries of your 
own routines on tape, and merge them into new 
programmes. AM-ZXMON is the operating system 
for the other programs below. 

ZX81 version €6,00 Spectrum version €7.00 

On the ZX81 you can create assembly language 
source tapes and assemble them into machine code 
using AM ZX EDIT and AMAZON, running under 
the control of AM-ZXMON. AMAZON can assemble 
programs of up to 6K in size at one time, and accepts 
user symbols, hex., decimal, and string constants, 
and the full Zilog mnemonics. 

Combined pack, two tapes, of AM-ZXEDIT and 
AMAZON, for ZXfil €9.00 

On the Spectrum AM-EDIZON is a combined 
editor /assembler with all the facilities you need to 
assemble and save machine code programs fast. It 
can be used to create, edit, and assemble up to 1500 
lines of assembly language text at one time & 
produce up to 4% K of machine code. The code and 
source program can be saved on tape for later use or 
for merging with other programs. Output tapes can 
be added to BASIC programs by the LOAD CODE 
command. Code can be assembled to run at any 
address, at a speed of 800 lines/minute, 

Spectrum version £10,00 

AM ZXCONV will load tapes created by the ZX81 
versions of AM-ZXMON or AMAZON , and toad them 
into the Spectrum; the easy way to transfer machine 
code from one to the other. 

Spectrum version £4,50, 

Aft prices include VA J, post & packing, We provide a 
telephone advisory service from 9.00-6.00 Mon-Fri 
and 9.00 until 12.00 Sat, 

AMERSHAM SOFTWARE LTD. 

Long Roof, Nervines Rd.. 

Amersham, Bucks. 

(02403) 6231 



YOUR COMPUTER, DECEMBER 1963 291 



The ultimate adventure 
for the Dragon 32 

Si 



Now available at: 




An epic three part journey, taking up over 90K of memory. Packed with 
features, this is the ideal family entertainment. Solve the mystery of the diary 
before time runs out! You start in the serene English countryside, then travel 
through the bustling London streets, to further adventures in France, 
Germany, Italy and Turkey with a thrilling climax in Israel. The most compre- 
hensive adventure yet for the Dragon. With hi-res graphics and text, 

ONLY £7.95 from all good software retailers or send cheque/PO to us at: 

SHARDS SOFTWARE 
189 Eton Road, llford, Essex IG1 2UR 



292 YOUR COMPUTER DECEMBER 




range for 

Sharp MZ 700 

3-95 



50 SUPERB 
GAMES FROM 



APOCALYPSE! TOMBS OF KARNAK 



FIGHTER COMMAND! FLAME QUEST 



DRAGON CAVES I I ICE WARRIORS 



NIGHTMARE PARK! CLUB GOLF 



I POLARIS 



24 HA CREDIT CAflD SALES 



Programmes 



DATABASE FILER 



Holding 1 .ODD records. iNs Titer *s descried lor 

use m such areas as telephone numbers, price 

lists, sf ex knowings, etc Many oHereru 

systems can be genera led if om the one only 

programme and data hew on separate data f* ^£ ^MM 



SPA DATA ■ DAYBOOK! CLUB-SUB 



send for a 
catalogue 



51 Broad S! 

Worcester WRi 3lR 

Telt090S)2€6?4 



Also for 

MZ-80A/K 



PLEASE NOTf - J*V OUR r> WC ES AH£ F ULmNC L "WE 



Computers 

ftjrtxport 



Sinclair 
Oric 

Commodore 
Atari 




Plus Printers, Disc Drives, Memory Expansion, Software 

Quantity discounts available 

No tax charge for equipment shipped abroad 
Write far our price list or colt our 24hr answer phone 

01-S49 8229 

Galoset Ltd, 30 Bayford Road, 

Littlehampton, West Sussex, 

England. Telex. 6954018 AcuratG 



^^ 



V 

The complete v*% 

speech synthesis system 



+& 



SPEECH SYNTHESIS MODULE 

for the Dragon 32 Computer 

• Fulty cased module plugs imo cartridge port 

• Unlimited vocabulary; based on dedicated speech 
processor utilising allophones 

• Appro* 200 words, and all numbers, predefined, for 
access by entering word or number required 

• Complete control using 5 new BASIC commands 

• Speech can easily be incorporated into existing BASIC 
programs 

• Up to 40 words spoken from one command: speech 
can occur simultaneously with graphics 

• £37.95 inclusive 

Also available SOUND EXTENSION MOOULf for use with the 
Dragon computer - provides facility to play chords and 
harmonies oasv to use via BASIC built-in sound effects 
- music and graphics can occur together without Joss of 
speed - two 1.0 ports User Manual - ONLV f 34.95 Inc 



ACCESS/Chequo/P-O. lo: 



J.C.B. (MICROSYSTEMS) 

29 South bourne Road - Bournemouth • BH6 5AE 
Tel: (0202) 423973 

Wrrrp m prion* for further details 



YOUR COMPUTER. OECEM&ER 1993 ?93 





■ISOPT PASCAL 



Huoft Pascal 4 it a very last and powt»tul mcrocwnpuw Pascal cofi ipHn rhai ra me reeutt o< three, years devaroprneni work The c ornp e ar conforms very 
dosetv to SiarWd Pascal as described m the Pascal Use* Manual and Report * Jensen Wrth) and produces Z8D obfect code directly mon*taa. no P code* 
ra be sitbeequenlry interpreted H f>* * also small Knot more then t 9K mrtudiog r _«n*ne rouimee and tables I but this does not •mpty any LecK of povwi t n* 
compeer and runtime* wnt written m Z80 e Jtl a v i sj i kli language and a great deal of lime was speni cm increasing ihe speed and decreasing, the sue of the 
critical routine* 

We h*va designed HP4 to be ample to uw, wry last, dote to Standard Pmc«i iw»ih miertponsi end inexpensive Thus, we see n as bang an amacirve 
ii.i-.ii.ta* In the educational f«W (horn leeching yourself at noma to teaching studenti al university >Cve)l and m the *« _f w im dVv«4apmeni To tr_* _nd 
Hnofi Pascal 4 r* a y e A aMi in boifi cattail* lap* and diskette vtnmt for a wide range at 2BQ machines The tape and disk vernon* ** unrtoaay identical 
tacepr ihat ti>n cassette version does not support fi LEs. instead the user *s gw*n in* ability to mix a ami retrieve any vanttie 10 end horn rapt. The upe 
version t HP4TI » organised m t manner thai maae» ii very easy to adapt tq most 780 system* and we suppry deleft on now id do in* tn ou> HP4T ^fetation 
Guide available sepereteU- 



In addition iq our Pascal wtasohiw evadaoln DEVPAC - a 280 development petkeoa which includes a fan and pmwHui tondirionai 
disassembler a debugger with single step lackty (even in ROMi and ton diskette! an extended screen editor DEVPAC <s a highly prqteattonel 
Lfoqrartoi which will Qf early factual* your software development. 

*****5TQp pp|f_ S"S***** 
H,*o»t Pascal now atraaatM lor the SHARP M7700 1 

Pascal lor the ZX SPECTRUM now includes FREE Logo style Turtle Graph*!' 
DEVPAC 3 b now available wnh *i the features you w»K aver need From an assembler • disassembler - see review m Which Micro rSepiemMr) 

STOP PRESS*"" 

Prices 

MiSOFT PASCAL 4 rape version (SHARP MZBOA K B, MZ70O NEWBAAiN etc I £40 25 

HISOFT PASCAL 4 tape wm |4_K ZX SPECTRUM! CZ5 Off 

hiSOFT PASCAL 4 disk version 

(SHARP MZ80A BK. SUPIR&RAH^ RML3BCZ. B formats etc - f 46 00 

DEVPAC drsk version iGemm, GoQ*> or G81S formats! C48 (X) 

OEVPAC tape verator, ZX SPECTRUM f 14.00 

DEVPAC tape version - NewBrain 1 26 00 

Ar" rne *4ove pneef *m i ( Y mc>u*<*e ot !&** VAT wctpttp w«rwi rne Urf. Add £2 Uf order* ft? It* rmmttnd of furpp* s*nf (4 ip other eou 



of 





HISOFT 

73 Gooseacre, Cheddington, 

Leighton Buiiard, Bedfordshire, LU7 0SR 

Tef. {0296} 668995 




£§y 



aasijiumsQieiEfflfiD 




W* ajaja> m #Mfi vfei tjf ( 



W**»l^wi» — Wpl A . 1 

""'■p— ■• ■'.-■■»■-» -«-•• _.v/eT F 

"**" — £4,95 t>?^ 

TRADE & EXPORT / 

enquiries # ;. ,:;":^7^^;^^ 

WELCOME - »**.«<? meoapayaWelOJ-K QHETEENTEf 



394 YOUR COMPUTER, DECEMBER i 383 



More than fun and games! 





imththeTftrmm 

by Prlm*r Educational Software 

fhe ever-popular Mr, Men help prepare 
young children for reading with four 
simple and absorbing games designed 
to exercise essential skills as well as entertain . 

An easy-to-use. colour-coded key guide 
is included with an illustrated introductory 

book, featuring the Mr 
Men. For ages 4 to 8 

years. Available now 
on cassette for the 
BBC B (Spectrum 48K 
cassette version coming 
shortly). £8.95 





tiy W<OQrt Soft tmm 

Two mind-stretching, space-age games 
to test mental arithmetic and nimble 
fingers, 
In Sum Vaders alien robots invade the 
earth, Only quick thinking and fast reactions 
can prevent them. Several levels of difficulty 
and a two-player game with a handicap 
option make Sum Vaders equally testing tor 
all family members, from 8 years to adult 
Robot Tables challenges the young 
player to make a series of perfect robots. 

Knowing your multiplication 
tables is the key to controlling the 
robot-making machine. With a 
learning mode and a testing 
mode, Robot Tables is a fun way 



for early learners, 
and more ad- 
vanced children, 
to master an 
important and 
often neglected 
skill. 




Available now on cassette for the 
Spectrum 48K and Commodore 64 (BBC B 
and Electron versions coming shortly). £6.95 

C4ESAR 
THE CAT 

ty Andromeda Soft*ara 

^ jA eet Caesar, a cheeky young cat on 

|M duty m a well-stocked larder He's 

w w kept busy chasing a gang of hungry 

mice eating the family's food. Playing against 

the clock, you guide Caesar along crowded 

shelves to pounce on the mice. 

A fast, colourful, all-action, arcade-style 

game with catchy music and a best-score 

record. Challenging for high-scoring arcade 

addicts as well as g reat fun to play for the 

novice. . ., 

Available on cassette for the 

Commodore 64 ^^ £8.9 5 

4* 

Puces include VAT and post and packaging. 
MIRRORSOFT programs wilt be available soon from 
selected branches of W H. Smith and Boots, and other 
leading software stockists 
Trade enquiries we/come- phone Of -822 3580 





SOFTWARE FOR ALL THE FAMILY 



To wiflfWfiSOfT. P08cn M. Bnmtoy. 
taii.Bfi?«TT 

PIcki sand me the toUomnng [enter 
mimber JwnjireitcilMctirh»mw : 
me wac? rjrwfldfld) 



ItnckBCictwqiH/POiar E mtft (Hyafito 

«? -RetflfO' Account Mirrac Group f*e*w»perj LW" 



i> cwiw d«ur my ACC E SS/BABCUWCAK) tor tnt tm * C 
cirano -] — | I I I I 



txi 



wr 



fifjtSum*iniB»«-M«iMw v 
QwkTrMMWfMOTOli 



I 

I rjsr, 




mtom*m«*H<n**r*mH*imwt*tHmm*H**y*<**ui iWXXfim 



'uniJtrtljiHjttiilmv 
itowtnttwiilbe 
held on my {what! »n 
|t>e bjri xcovri 
njmedibO* until 
(he poods in 
r>Kpj|CftM 



t » 



Stgnifort 

Hvrt 

tdMtSS 



nHuxw 



HI C* *«•* 



%f Am I 



Ki 



£49.95 

(Inc. VAT) 
+£2.50P&P 




THE NEW IDS for the SPECTRUM, 

ZX81, IAZER 200, JUPITER ACE, 

This elegant desk top system, designed for the 

professional user, in Its slimline case, the superior 
keyboard contains all the graphic characters for the above 
computers, with the additional function keys and 
SPACE BAR, speedy and accurate data entry is made simple. 
The Fuller FDS is easy to install, based on the very 
popular FD42 system, it requires no solderino, or technical 
knowledge. For the user who is reluctant to install his 
computer circuit board inside the FDS a buffer is available 
tat extra cost) which simply plugs onto the expansion port 
and connects directly to the keyboard. The FDS is now 
Microdrive compatible. 



The Natural 
Extension. 

Firmly established in the development of computer hardware, the acknowledged 

leaders in their field, the vast range of Fuller experience is available to you 
through their comprehensive selection of accessories. This ever expanding range 

make Fuller the natural extension for your Computer. 



THE FD42 KEYBOARD 

For the ZX81 or Spectrum, The F042 
has long been a best seller, the unit, 
housed in an attractive A.B.S. plastic 
case, transforms the Sinclair computer 
into a useful professional unit, providing 
graphic characters for the ZXS1 or Spectrum. 
The full travel keyswttches have gold plated 
contacts and are guaranteed for 10* operations. 
Installation is simplicity itself, and no soldering or 
technical knowledge is required. 




MICRO 
SYSTEMS 




£29.95 

line. VATJ+ U.50 p&P 

RS 232 PRINTERFACE 

Rom based software. Versatile printer interlace, £34-95 

Comes complete with instructions and lead. 

CENTRONICS PRINTER FACE 

As above but for parallel printer with CENTRONICS input £39.95 
(leads can be supplied at an extra cost) 60p P&P 

DUAL PRINTERFACE Features both R5 2J2and £49.95 
CENTRONICS INTERFACE «op P&P 



Fuller Micro Systems 

The IX Centre. 71 Dale Street, 

Liverpool 2. Tel; 051-236 6109. 



j 




£54.95 

(inc. vati 
+ 80p ?&P 



THE WASTER UNIT* 

The Ultimate Games Unit 

The master Unit provides all the requirements 
for the serious games enthusiast, containing 
not only the FULLER BOX. but also the FULLER 
ORATOR, all contained within the standard 
case. 

The Speech Unit and sound synthesiser combines 
to provide exciting voice and sound tor your games. 
The other features include. Cassette interface, a 
variable audio output which may be connected directly 
to a HI FI system. The JAASTTR UNIT provides endless 
scope in applications, and it allows asccess to the 
SPECTWJtt tor other periferal. via its duplicate user port, 
i.e. printertace. The WASTER UNIT is complete with full 
documentation and demo tape which includes the type 
of speech and sound you can achieve. 



The Fuller Box - 

The Sound System for the Spectrum 

The FULLER BOX added to the IK Spectrum, improves the sound quality 

enormously. The built in audio amplifier worXmg well with all SPECTRUM 

programs. 

The FULLER BOX allows you to program your own musk, explosions, 

zaps, chimes, whistles and an infinite range of other sounds. Based 

around the popular Gl AY 3-891 Z sound chip It gives you 

complete control over 3 channels of tone and 'or white 

nofse. plus an overall envelope control 

Also provided with a joystick port, the unit gives instant 

command over all your own games programs The port 

is compatible with all the commercially available 

joysticks eg Atari Commodore. 

The FULLER BOX is complete with full documentation and 

a demo tape which Includes the type of sounds you can 

achieve, it also allows you to program your own sounds. Fitting 

neatly onto (he back of the SPECTRUM, the FULLER BOX jjflj 

allows access for other peripherals. Including the new SPECTRUM 

Micro Drives, via its duplicate user port 

Certain imagine. Arctic and A&F games now with speech and sound effects. !^TZ ST, Z^n^i 

* (inc. vati + sop P&P 

Upgrades for the Fuller Box and Orator 

The systems can be expanded to MASTER UNIT specifications including the full range of controls The upgrades must be fitted by us, at 
FULLER MICRO'S. 

PRICES ; (ne V.A T) ORATOR to MASTER UNIT £14.95 FULLER BOX to MASTER UNIT £24.95 




£29.95 



The Fuller Orator - 
Speech for the Spectrum 

A smash hit at a number of recent Micro Fairs, the FULLER ORATOR 
uses an allophone system Based on the Gl SP0256 AL voice 
synthesiser chip Directly accessable in BASIC, it is able to say 
anything you command using the keyboard or a games program. 
It comes in the standard case complete with its own audio 
amplifier, it allows access to the SPECTRUM for other peripherals 
via its duplicate user port Full documentation and demo tape 
included. 

PRICE line V.ATi £39,95 plus Bop pip. 

1 6K to 48K Memory Expansion Pack for 
the Spectrum 

For the 16K SPECTRUM owner - upgrade your machine to 44K of 
RAM with the FULLER upgrade kit Complete with full assembly 
instructions ; Mode 1 1 or 3 onlyi. 

PRICE line VATI £24,95 plus SOp pfrp 

Ram Adaptor Boards for the ZX81 

Allows you to fit your Ram Pack inside the FD42 system Accepts 
most commercial Ram Packs 

PRICE line. VAT I £9,3 5 4 Mp pip 



roinjiwoiwowux* 

SDDENCKKED 



rot un 
mm 



mot 

(OtWfti 



Fuller Quality 

Fuller Micro Systems reach for the highest quality in Research and 
Development, to make our products the BEST 

Fuller Service 

In an effort to provide the best service we have built a new mail 
order dept at 71. Dale Street. Liverpool 2. Due to come Into 
service soon 

Fuller Guarantee 

All our products carry a worldwide one year guarantee. 

fuller stock a full range of components and Mis for your 
computer, send SAT. for details. 



I 

I 
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I 
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e 
i 



r- 



Please supply (tie following items t state uems and quantity) 

plesase send me <n I 

please send me ' I 

please send me „ fa L„ , 

please add t forpip 

I enclose a cheque PO payable to 

fuller micro systems Total I or debit my Attess/ 

Ear clayed rd - Card No. 

Signature 

Ndime ....... .*.... ,».. u 

Address 







- i--i*->-- —'■';■■- 



I 

I 



fj|n DEALERS REQUIRED FOR UK & ABROAD 051-236 6109 I 




I 



VUG 



ENQUIRB WELCOME 



71. DALE STREET, LIVERPOOL 2 



I 



THE BEST SOFTWARE 

ON EARTH 
COMES FROM PSION. 




Psion is the source for the best 
software programs you'll ever see on a 
Sinclair Spectrum. 

Our range runs rings round other 
software. In short, it's faster, livelier and 
more colourful 

Why? 

Ideas. At Psion, they're bigger and 
more ambitious. 

We combined a 12,000 -word 
dictronary with complex logic - and the 
result ss spectacular our Computer 
SCRABBLE ' program. Then there's the 
'Horace' series... 

It's all down to programming skill. 
Flight Simulation -a 'real-time' program 
- is a special breakthrough in this field, 
Few other programs make such full use 
of your Spectrum's capabilities 

In all , there are 12 challenging 
titles, published exclusively under the 
Sinclair label. I Not counting the free 
'Horizons' cassette that introduced you 
to your computer.} 



Psion programs for the Spectrum: 


• Flight Simulation 


• Hungry Horace 


{48 K] 


• Horace and The 


* Chess (48K1 


Spiders 


* Space Raiders 


* Horace goes 


* Planetoids 


Skimg 


• VU-CALC 


• Backgammon 


* VU-FILE 


• Computer 


* VU-3D(4SK) 


SCRA8eLE'|48K| 


HrK-K* »*n#i pnxtuCMl in r. on«mr.iinn *nf h Wrimna Hnuo 


SCRABBLE " rrcOvmart »m» rotfinqn ticancad trt Sent** 


JjchuUrcMt i^ri ItwIlllCfnbH - * J W Spaar ami Som 


PLC iuhtHtlfV 





Unbelievable } A recent W H Smith 
chart of best -selling Spectrum programs 
speaks for itself. No less than 7 of the top 
12 cassettes are by Psion. And there's 
more to come. Watch out for our very 
latest program, 'Chequered Flag" 

In fact, if you're choosing software 
for your Spectrum, there's just one way 
to find the best. .. 

Look for the Psion symbol on the 
cover of the cassettes. 

PSION %* 



The start of something new! ! 




flow you can stretch your 

skills to the limit with this new 
computer version of the 
highly popular game 

connccT 4, 

Pit your wits and skill against 
the computer and simply 
connect Tour of your counters 
In a row, either vertically, 
horizontally or diagonally , . 
did I say simply? 




Any of these games for Just 

£5.00 



Vou built the bridge 
and the responsibility 
is all yours. As bridges go it's 
not a bad job. Only one snag, 
due to a shortage of building 
materials there Is only one 
section left and six gaps to fill. 
The Boss is on his way to 
Inspect the Job, can you juggle 
the single section around 
quickly enough so that he 
won't notice the gaps? It ain I 
going to be easy. 



Can you steer your Siily Cyclops through 
the Barrier and then through five other 
mind-boggling games? Only one thing 
you can be sure of. It's going to be 
Practically Impossible. In some of the games 
Silly Cyclops closes his eye so you can I even 
see him. How on earth do you helpa guy when 
you can t see him? As I ve said It's Practically 
Impossible .... 





supply the fotowtng lltfc* at 13 cadi. 
Ho of r cf*a 

I BfUDOEtlAn 

I HWCTKAUY IMPOSSIBLE 

COnT1KT4 

In enclose DteqMe/noaud Qnler Ho 

made pay**: to ACTtt SOfTWAAE LIMITED, 

I 



kvihramnuniaf 

Goods 10 be iU nynAt In <1 by rt&nt ofpOOC* 

rWTC mmww ,.,„., 

ADDRESS, 



■• > - 1 - • - • i - 



?•-■■ •-■ " ■■ ■ -" 



ip-riHf 



POSTCODE . 






■ *£«SGrT»MLIMfTTU*»31 The Albany, OH Hal 
St Uwrpom Hunyth. i.i«j Trt oft] unaanj 



Acme Software Limited 4W51 The Albany, Old Hall Street Liverpool lierseystde. L3 9CJ- Telephone: 051-2368062. 




\ 




*JF YOU OW 
COMMODORE 64 



L W - 




HERE S YOUR 
CHANCE 

to use your Commodore 64 to it's full exerting potenual . . . 
to experience me fastest, meanest, smoothes^ most addictive 
shoot-em -up' game ever 
to use your determination, skill and wifl power and battle your 
way through level after level, wave after wave of increasingly 

vicious and intelligent alters . . ^ 

to treat you and yourCommodore 64 to Afcadta 64, once ^^ 

your re hooked, you'll understand why it's the best 
selling home computer game in the U.K. . . . 



Available itW.H. Smith, John Mmxlci, Boot! 
and our nationwide dealer network 



:/ 



•(trie nome 
of the gome 



5 5* Thon» Satel 
Lwfpool *exy*fc LI GBW 
Deder Duquirie Cort*ct 
O* Stokes on 061-236 6100 120 am) 



'Get it right 
atLaskys... 

Games, business, education, word processing, accounting,* .The 
amazing polemic! ol micro computers is virtually limitless, so you 
need the right advice in order to find exactly the right machine for you. 
At Laikys we have a specialist micro department called Micropoint, 
where we can help you (o analyse your requirements and experiment 
with everything from the simplest to the most sophisticated 
equipment, 

A choice of easy ways to pay, free 2 year guarantee, a commitment to 
exchange products if you are not completely happy and, of course, a 
nationwide after sale* service. You can't buy micro anywhere better 
than Laskys - who else offers you so much? 





ATARI 400 




Home computer 
with M>K memory. 
Spill proof 
keyboard. Superb 
graphics. Colour 
j nd sound, 
eludes basic 

Erogram 
it. 



FREE ATARI *10 CASSETTE PROGRAM 

RECORDER FOR LOA DING A ND STORING 

PROGRAMS. USUAL PRICE £49.90 



APPLE He 



PROFESSIONAL HOME-! 
COMPUTER PACK 




PLUS VOUCHERS 
WORTH OVER U00 
FOR PROGRAMS 
& ACCESSORIES. 




A sophisticated micro with amazing scope for home 

and office. 
64K memory, disk drive, RF modulator enabling 
you to use your existing TV as monitor, includes 
Owners Pack. 



LYNX 96K 



Compact powerful 96K home unit at a 
budget price. Colour, sound and graphics. 
Compatible with most cassette players. £298 

Lynx Parallel Printer Interface £49.90 
Lynx Serial Printer Interface £3.90 







t — > 




— 'I- 1 " ■*■ U,^m-. 




V* ftl" t*^^^M< 




^ ■> 



I 



Recommended Epson printers for Lynx 

Epson FX80 £498 
Epson MX100/3 £539 

E P so " RX 8Q s&rggSSff 



AS* 



The Home Entertainment Specialists 



iLLKAJO* XMAS& 

SKS™ NEW YEAR 

0PSN1MG HOURS 



LCHBO»l«WDMlTt* ■■ ■ 












■ T l l llpi ) 

' -■ . ' ... 






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MMUtflk ' ••« . a Mia 

tTswoiiajSial i pit— -««Hi«siM**!Hi 






IHHUIHUW! 

wuNHbT 



Watch our Tor new La* A vs Stores opening soon in Ealing, Southampton, Brent Cross, Cattibridge ami Exeter, 



VOUR COMPUTER DECEMBER tB83 Ml 






ROSE SOFTWARE 

EDUCATIONAL SOFTWARE 
FOR THE SPECTRUM 
j~L (16Kor 48K) 






YOUNG LEARNERS 2 
4 pragtairti fat \\w young 
£ornpul«r uw - artgUi, 
t*W« dVduc< and capacity Afl 
w«K cxccStnl graphic* An m\ 

inttodwtwn «o compul»t Hd*d 

(■■HHng 


£5.95 per catttttr 
(the. p*p) 




INTERMEDIATE MATHS 1 
6 teach and MM program* — bog 
mutopacaoon. long ah/won (both 
aDow lor mtry of al working}. hlgha* 
common (actor lowM cornmon 
tnulttpW rracwort* 1| * k -), 
fracttnn* 2 IK St 1 Each pro-am 
H« an ncmnvt jackpot gamt H»tp 
(ac*n*» avaJaWr 










QUAZEft 

T»« your quick rhinkrng * wrl) 
M your quick rwtiOM with 
trwit low prog am* of ouustt 
cwnbtncd with « lass action 
mflfhtn* cock maw An d*al 
Xm** pmmt far a «ni^ 


Ml hav* a Jorpt rang* 0/ 
rduc abond 1 pnMramt /or die 
Spwtrum m4 ZX SI from 






Send acw /or caJoJoguf 0/ off our product* to — 

ROSE SOFTWARE 

148 Widney Lane, Solihull, 

West Midlands B91 3LH. 





Blast off to ADVENTURE 



VflSSff*?. 



^o*2 



■SKcS^ 



Create and solve ADVENTURE 
programs on your Spectrum, 
Commodore 64. Dragon, One or 
BBC Micro. 






;^<— 



CREATING ADVENTURES ON 
YOUR ZX SPECTRUM - 

Peter Shaw and lames Mortleman. 
Create and solve Adventure 
programs on the Spectrum with 
this exciting new book which 
includes five complete ma|or 
programs, plus chapter after 
chapter of hints and tips to help you 
write your own programs Chapter 
headings include Creating Locations; Picking Things Up, 
Monsters; Adding Graphics; and Adding to the 
Vocabulary. lust £4.95 and you're up and away. 

CREATING ADVENTURE PROGRAMS ON YOUR 
COMPUTER - Andrew Nelson If your computer uses 
a version of Microsoft BASIC, then this book is lor you 
It contains three complete Adventure programs, along 
with extensive documentation to help you create and 
solve Adventures- Suitable for use with the Commodore 
64, Dragon, One, BBC Mrcro, Sinus, IBM PC and 



Apple, you'll find thss book an 
easy to - understand 
pnmer on Adventure creation 
The full • length programs 
include WEREWOLVES AND 
WANDERER and THE AFTERMATH 
OF THE ASIMOV] AN DISASTER 
This book is just £4.95 




I 

i 

i 
i 
i 
I 
i 
i 



Interlace PubUes.t>oti*, 44 46 Eaiti Court Road, London W9 6EI 
Pba»te^m* the fcWowmg book* I endow E 

D Creating ADVENTURES on your ZX Spectrum 

Shflw*Mpct!*p*i - 4 95 
□ Creating ADVENTURE program* on your Computer 

Andrew Netoon — 14 95 

Nam* 



Addiets 



INTERFACE 

PUBLICATIONS 




frwipwr wrl tnnt Trtli ncTJnj t_l T>i* rrwrnier frriri^T 



Xli*>ed**atA Qtan 



837 CM' 



302 VOUB COMPUTER. DECEMBER 1963 



...nobody sells 



micros 
better 




ATARI 600XL 




New Home Computer with lbK memory. Full size 
keyboard plus help key (for additional information and 
menu screen) superb graphics, colour and sound. 
Compatible with all Atari home computer Software. 



COMMODORE 64K 



A home computer with a full size keyboard 
Powerful 64K memory, sprite graphics, 
colour and sound. 



DISK 
DRIVE 1541 
£229 

WITH FREE 

EASY SCRIPT 

WORD PROCESSING 

AND GAMES 

SOFTWARE. 

(USUAL PRICE £75.) 




VIC 20 STARTER PACK 




Inrludus VIC 20 5K. computer. C2N caste ((c rerordcr lor 
loading & storing programs, & cassette soIim ,irc which 
includes Introduction to Hauc Part t t Blitz, Hop pit. Race 
l\ [ y ■ )?•»*- Turn- ! 



ORIC 48K 



Oric MCIMU Printer £169.90. 



-LASKYS SOFTWARE 
SELECTION 



■■ifW'i f^ 




A home computer with 48 K memory, 
-crgonomic keyboard, colour/sound graphics. 



139 



'A I 



ISCOVER OUR MASSIVE RANGE 
OF SOFTWARE IN STORE! ALL 
THE LATEST TOP TITLES FOR 
ALL THE POPULAR 
FORMAT 

- tO PA* 



qglffr 



5-t** 5 



The Home Entertainment Specialists 



IlLIUJQH 
CBC(HTC*mW 

ACCEPTED 



**«*«; «>i» si 



am cffljrfK H«[»4'" ••■ - '•»!*■»* 

• » a« ■ i , ■ 3W* 1 ■' w (* 

vbaii'v 'I" !«*>... »nhfc»..*»-r. *»'*a«0O'w»*<» 



A.tUISrin^t —»■* s^- 

<lWW "M- tow SM 

<«: w aw iK n, mi l 



SI..: 



W»*li»l» 



Wis u. -■- 



pt9b*m mmt 

wtnafMSr 



wili:u(v>\-avi 



XMAS& 
NEW YEAR 

OPENING HOURS 



>"■*■- lr 
WHlMdiwti 

«m«m * WUHMMUb 



Waff h out for new L^skys Stores opening soon in Ealing, Southampton, Brent Crois. Cambridge and Exeter, 



vOUft COMPUTE H MC EMBER 1963 303 



I AaWUKU I WU THE WORD PROCESSOR 

64 CHARACTERS PER LINE ON THE SCREEN AND TO PRINTERS! 
MICRODRIVE COMPATIBLE — instructions supplied 



TASWORD TWO The Word Processor 

Your Spectrum becomes a professional word processor 
with TASWQHO TWO TASWORD TWO gives you an amazing 
64 characters per line on your screen This is ideal far standard 
A4 paper and TASWORD TWO prints your text |ust as it 
appears on your screen, 

Tsswo/d Two drives the following interfaces 

Cobra RS232 I O Part KempslOn Interface 

Euroeleclron ics Interface More* Interface 

Hilderbay Interface Tesmen Interface 

Sinclair IX interface I 
The same program drives these interfaces. A short easy to fol- 
low set of instructions takes yGu through setting up your f>£- 
word Two to drive the interface you have or choose to buy 
Tasword Two also drives the ZX printer 

£ 1 3 "90 fully inclusive msil order price 

TASWORD TWO TUTOR 

TASWORD TWO comes complete with a manual and a 
cassette. The cassette contains your TASWORD TWO arid 
TASWORD TWO TUTOR. This teaches you word processing 
using TASWORD TWO. Whether you have serious applications 
or simply want to learn about word processing, TASWORD 
TWO and TASWORD TWO TUTOR make it easy and enjoyable 

TASWORD TWO £2 Demonstration Cassette 

See far yourself the powerful features of TASWORD TWO 
Send |ust €2 (or the Tasword Two demonstration cassette. A 
vouchor is included which gives you CI off the price of 
TASWORD TWO 




TASWIDE - 64 characters per line! 

A machine COde utility program, TASWIDE doubles thi 
information that your own programs can display Make a 
Simple change to your print statements and your output 
appears on the screen at 64 characters per line instead of the 
normal 32. Both print sues can be mixed on the screen. 16K 
and 48K versions supplied on the same cassette. 

£5 50 fully inclusive mailorder price 

T ASWAN PRINTER INTERFACE 

Plug into your Spectrum and drive any printer fitted with the 
Centronics standard parallel interface. Supplied complele 
with ribbon cable, connectors, and driving software The 
cassette includes LUST, (.PRINT, and text screen copy 
software for ail eenrronics printers and fast machine code 
high resolution screen copy software for Epson, Star, 
Seikoshs. and Tandy Colour Graphic (In colour!) printers 
Send see for sample print-outs and full list of printers sup- 
ported by screen software. 

£45 fully inclusive mail order price 

All prices include VAT and post and packaging 

TASMAN SOFTWARE 

D** vc 

17 HARTLEY CRESCENT LEEDS LS6 2LL 



ACCESS orders. LEEDS (0632) 43S301 (24 hours) 



The other side of the micro. 




Another first from Wireless World 

This month's Wireless World won't he telling 
you what a micro does, instead we'll tell yon how 
to choose (he micro (hat's most relevant to your 
technical needs 

This is possibly the most detailed guide to 
microcomputer Lit limes yet to be offered m a 
monthly publication in the UK 

December's Wireless World lists the available 
micros, their characteristics ami facilities for 
connecting peripherals, 

Thisisasurveyforengineersaiid experiment- 
ers, who need to know how individual computers 
can be used in their work-t he emphasis is on the 
interfacing capabilities of the mach ines described. 

We were the lirst with the inside stories of 
television and video, in the December issue we're 
first again 

Out now, 



304 TOUH COMPUTER. DECEMBER 1983 



COMMODORE 6* GAMES ARE NOW AVAILABLE ON DISKETTE FOR ONLV £? 00 EXTRA 



S NEW GAMES FOR YOUR 



INTERCEPTOfi 

M ,CROS 



PRESENTS 



SEND S.A.E. 
FOR FULL LIST OF GAMES 




PANIC a 



uiiki 






'• Si 



17" 







1 
i 





nmm 64 









CRAZY KON 



m*tn*| »na- -■* 



■<3t 








V01?P JrANG&R 




NEW GAMES FOR YOUR ATARI 400mOO-l6K 




NEW GAME FOH YOUR B8C MODEL B 




~W&07 — . 



NEW VI* 



r 



Mr, Mr I. MiH|_ 
Addrtu |_ 



J I I I . . ■ . . ■ ■ ■ t . t . . | . , ! > l ■ lj , j_J_ 



■ 1 I 1 * 1 1 J J 1 



* - ' * ' ' ■ ' L * 



Qu*nli 



'•■ 



SfjmhUW 



Star Tr«^ 6« 

Froflarf W 



»v»«w 



Cru-y Kaftj ^* 



ftpfittrrun 



WdTjhmw 



Inlnidvn 



m 



■lupilir D^pncttf 



£7,00 



£700 



£7 00 



£7.00 



£7.00 



£7X0 

jiToo" 



TToo 



£0.00 



row 



G«;jtJ,r>f1 tftfc Ja 



FartUin ifrt, Xtf 






Aluft Aii«ch 



V* H« 



jfcjj 



*™» ** ■ft*-*' » M 



£TB5 



£0.00 



£4.00 



:eoo 



C5.O0 



Ton*. 



^ I t** 



S»nd Chwwf.Q. w<Th Or** to 
Amp ft ***M* JHp 



InEirctptor Micro'i Linden Houta, 
Th* Gr**n. Tttfrr. "mlt 



yc 



-i 



STOP PRESS 1 NEW VIC 20 FALCON FIGHTER STOP PRESS STOP PRESS 

ONLY £6.00 






YOUR COMPUTER. DECEMBER 1983 30$ 




>* 




X-jr 






<•'# 




*' * Kt 





PUSH OFF 



■HK SPEC 



/ 




chased by t' tbegord< 

LuckilywouK. . hontopuih'ofouni 

crush your ox: irvive ihefirM 

eight scpwrens? Then the gome becomes difficult! 
Spectrum software ol 
best. 100% machine code 
fas' octioo, 
by Andrew Giies 



£5- 95 



OPTWARC 
PROJECTS 

Bear Brand Complex, 
Allerton Rd., Wool ton, Liver 
Merteyside L25 7SF 



7Qm 



McKENSIE 



48K SPECTRUM 



An adventure for the 48K Spectrum. 



\ 



J 



Answering distress colls fromspace stolio 

can be very bojordous as you will find out 

Lithium crystals, bandits, limited oirsuppl 

all add to the 

ingredients ofAhis 

exciting adventure 

ByE.E.K. 



£5 95 






J 










UVfi 

sfcie'wvoiding 

ingo>CHJndiriar~ 

achirfefcodeTjsin 

M 64taj]> best, 5o*f ry 

by Chr bianco sfer 



SPACE JO 



Arcade act ion for The uffe*pcr»ded Vic 20, 
Manoeuvre your space croft around the screen 
avoiding wovcs of enemy space ships, 
meanwhile trying to- destroy them by londing on 
them from above, ofso can you destroy the pods 
before they return to 
destroy you. 
(Joystick only). 
By ton York 



£5- 95 



DEALER ENQUIRIES! 

TIGER DISTRIBUTION, 
4 VICTORIA ROAD, 
WID k 
CHESHIRE 
051-420 8888 



mmw< 



TORS CONTACT: 

SOFTWARE PROJECTS, 
BEAR BRAND COMPLEX, 
ALLERTON ROAD, 
WOOLTON, 
LIVERPOOL 125 7SF 
051-428 7990 




SUNSHINE 

The best books & software 

for popular home computers 

What the 
reviewers say 



Books 



* "it you can't write a haHwoy decant gome offer 
reading Dragon 32 Gomei Montr then it wiil be 
down to your o*vn lock of Jmogynofion I would 
recommend" (he Broin'i book ot fh* best of thi* 
selection WHfCH MICRO - SEPT B3 



*f The Wfot king Orogon 32 "It's a good one 
PERSONAL COMPUTER NEWS - 20 MAY 83 



* 'The style of The Wor king Commodore 64 is 
eosy to fallow ond informative" 
PERSONAL COMPUTER NEWS — 18 AUGUST 63 



* "Commodore M Mocfvne Code Master l* o truly 
useful book for the machine code programmer 
— and its eosy to read oj well it is impossible 
to overpraise" 
PERSONAL COMPUTER NEWS - 25 AUGUST 63 



* "There deariy is o need for boohs like 

The Working Dragon 32 which provides more 

than fuif gomes 

MtACTICAL COMPUTING - SEPT 83 



* "Blind Aitey it simply modfy addictive It Is 
bound to be hugely popular" 
WHAT MICRO - JULV '63 



D The Working Spectrum £5.96 *■>. hmzoi 

I Q Spectrum Adventures £5.96 ». Dwanti 

I D Spectrum Machine Code Applications £6-96 *i* iwam 
Q The Working Commodore 64 £5.95 .». twa«i 
D Commodore 64 Machine Code Master £6 95 -^ :Ma»> 
G Mathematics on the Commodore 64 £5 95 ,u* iimihi 
O Commodore 64 Adventures £5.96 hi o**mi>» 
D Business Applications for the Commodore 64 £5.95 -.. 
D Graphic Art for the Commodore 64 £5 95 em etwmr 

□ Functional Forth for the BBC computer £5.96 ■«*. dh«*< 
D Programming for Education on the BBC computer E5.96 *« i 
Graphic Art for the BBC computer £5.95 ■<,», stMtn 
D DIY Robots and Sensors for the BBC computer £6.96 
D The Working Dragon £5 95 •-. *.*# 
D Oregon 32 Games master £6.96 ■•>*•< twaw 
D The Dragon Trainer £6.96 «d o**w*i 
G Advanced Sound & Graphics for the Dragon £5.95 mm 

□ Mattel Aquarius Games master £595 ■■«>■ 
Atari Adventures £5,95 ■■ iwnn 
D Master your ZX Microdrive £6.96 em mem 



u» 



i •* ■ 



Spectrum Software 



Q Cruising I16K RAM) £4.96 inc VAT 
a Blind Alley (16K RAM) £4.95 inc VAT 
D Androids (16K RAMI £5.95 inc VAT 
nSwOrdfight|l6K RAM; £5.95 inc VAT 
D Galaxy Attack I48K RAM) £6.95 inc VAT 




Dragon Software 



Q Cruising £6.95 inc VAT 



I •rtclot* o ch»qw» ■' postol ord«r for £^ 

payable to Sunshine Books. 13/13 Lirfl* Newport St. i 
London WC2H 3L0 



Nome _ 
Addr#ss 



Signature , 

We can norma I ly d*liv*r in 4 5 days. 



Look out for the Sunshine range in W.H, Smith's, Boots, John Menzies other leading retail chains and 

through our national network of bookshops ond specialist stores. 

Dealer enquiries: 01-734 3454 



308 VOUfl COMPUTER DECEMBER 19B3 






You can connect a Sinclair 
OE Printer to your G5M 
Computer by simply 
plugging the ngrit 
PRIHTTACE unit to your 
syslem giving you up to 43 
characters line or 256 Duel 
graphic! . 



DtpRINTEH 



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(ask lw Pnntlace 1 ) 

For DRAGON 32 

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For ATOM/ ACORN 

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ForORIC 

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For VIC 20 
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WQWTOOflDEfl P^aseentB* you' r«joifem«nismiti« coupon t»io*. onctodng 
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SYSTEMS LTD PtaaM allow 14 days for dahwy 



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The MASTER PLUG is an ASTA approved 4-ln- 
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From 
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MAIL ORDER TO: El bird 



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ftnancw malt* utur henri biLu* 
Do you «* red* 
Dofll wum now you ran h**B 
KUlon* PWThmuI FUniioK 
Sj**»i <h> >w ihW «i> int *tmi 

* r tear hnari »ld rt nix] 

IhnpHullvl pulling wxi bad 

moUMibUdt' 

Maintain permum-m rw ord* 

and fuiJi, drnailcKl ttalethttils of 

\<mr finances * Statr-Ji tmiUtv 

n inrludM} tn autOfllaMcallY 
tturrh vour Uank SluUran! 
IV yuuf PBS kCi aunl 

* ZX»1 [»»fl«f 

■ zxs«CTiiiMiij,»naiii 

* D*A,GOMl2 0G(]2lt| 

* HIM t8«| ],!>.) PBS mtU 
|U«rtp|*rd i'i'- •.!!■■• 
mautlMiBiKB provided 



S>\\ RF.i-tASE^ 



SPTCTTlMi^Ki 

OAJU)t-VBI*D^ 

^capl^^'^ n Jl m,pD * l^1 "* , 

\£,pm. m»pnM In*. Pt*T i 

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rEToMMiwdDf-aw" „ iri 
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«« 



HILTON 

COMPUTER 

SERVICES 



HOim Co*pui*f S*rvk«™ Lid 
[Dcjrt VC| 14 Avnkm Road 
Orpington. Kan! BR6 SAX 



YOUfl COMPUTER, DECEMBER 1983 309 




BLABY COMPUTER GAMES PRESENT 






GOTCHA' 



"BOTCHA" — Aner ticipmg from (he 
local ruck. Emms sow tat k up to nts m 
tndo 4tkkUCHM 

00D0 — Starring DoOc and the Snow Ban 
— you in 1l» tift surviving breed at 
Dofle i ikVM k th* Antarebt, ttflOuftttd 
r ice Mocks end Snow Ben 5MM the « 
. on to tn* Snow Baas w Mctfifv trw 
ikMttam MkM/CfSSO 



— You an totiir, contusK 
and ari tk*ng Jiricksfl Irom tan vdes by 
the moil nail est Aiieni kno*n in ine 
unvtfS* 4flk M/C El 9i 



Pluggitt 

PUKBITl — Young Parey Plupgil mutt 
get back to Tt»s ewaifl board hi tune Please 
1^ rvim find me r^rrt kays h 4M M t CS 19 
HIGH RISE MARRY — Featuf.no Harry High 
Rise and me Rust Bugs — guide Harry me 
Ptrtfjr atoftt The jirrJeri. up tr* laodert. 
cm to tr* lifts, out mmd Trw slides' Rve 
whacky sews askH/CE5W 

SMUTTLI - Gunk your Shuffloeratt down 

10 the wrt*c* ol the Planet Nexon. rescue 
the stranded space patrol and return Mm 

Qn*ovor»tgmtjajVh/QftntMoaiefsf»ip 

48* M/C E4 35 



KILLER HONG 
KlLLf A KONG - Featuring tut semens of 
arcade action — Elevator* — Kong — 
Mark} — Barrett — Htmouraefs and twi 
Mines girt J8K M/C £5 M 

CHOPPER RESCUE - Soenttttt *re Ewdq 
eniombefl u now radioactive waste . can put 
a a helicopter piiol Fescue them Ml m 
Time? Ok M/C ES 50 

KDSMIC PIRATE - Gu ■ e« your Pita* «*- 
sal througti (ne massive fleet ol space craft 
ttiji las crtcircVed me plane! Verot and try 
to iteai your essential needs 

atk M/c ilia 



B4RM V BURGERS 

BARMY BURGERS - Bapi. Hufflirt. 
Cheese and lettuce — finy an all man all 
you hay* lo do ts put mem together rt 
sounds easy doesn't it? But not wten you 
at fterng chased by i Ined egg and saw- 
ages! aikM/ccSM 

GOLD DIGGER — Dig your way mtougti ne 

Mint and lintt fu gold nuggets but keep 
away from me nugget gnashers 

48k M/C £4 75 

YOUR GAME COULD HE IN THIS SPACE 
PROGRAMS WANTED 



AlL GAMES ARE AVAILABLE ON MICRO DRIVE £10.95 



UQHTtHNQ 
01 1MV»tt 



GOITRE SOFT 
021 -520 T»1 



•OUt«*MT 

PC3SW 

EXETER 



DISTRIBUTORS 

VQRK5Hlft£ SCOlLAfD CfELAMO 



PHONkAST 
OSSETT 



HA**i,TON 



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RCJPCjAYIK 
24242 



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C"<MS* 474809 



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ROTTERDAM 
010 31 10 144O1& 



SPUN 

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GERQNA 
972 55 56 16 



RETAIL OUTLETS 



W. H. SMITHS - SELECTED BHAHCHES 

ARCADE COMPUTERS - LEICESTER 
CRASH MICRO — LUDLOW 

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ABERGELE COMPUTERS ABERGELE 



GORDON HAYWOOD 

IVY SOFT 

FOX'S 



- ALFHETON 

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- NOTTINGHAM 



AND MANY MORE OOOO COMPUTER STORES 



JOYSTICK INTERFACE 
El 1.95 



ATARI RAMPACKS 
32h £49-95 



5PECSOUN0 £9.50 
(Jrte inside your Spectrum) 

CROSSWAYS HOUSE, LUTTERWORTH RD., BLABY, LEICESTER. 
TELEPHONE 0533 773641 TELEX 342629 JRHHG 

DEALERS — PLEASE ASH FOR OUR ViDEO TAPE OF OUR COMPLETE RANGE OF GAMES 



BBC 32K 

All opiating SvStem 



747 FLIGHT SIMULATOR 



!•■•-.-. 



a 






"THE BEST SIMULATION AROUND, 

A MUST FOR ALL BUDDING PILOTS", PCN 



from DOCTOR SOFT 

2Sfi Coneya/ee Bd . Peterborough 





Pilot written. 

instruments and 

3D visual runway view 

(Heathrow, GatwickL Banks 

and pitches wnh realistic motion, Now with full 

Instrument Landing System MLS I. Briefing program, charts, notes and flight plan Faniaaiici 



JOHN W»«115 AW All UADMGEMALfnS 

* 0**CT mtd Q*6p 

* W*»*n<iaO0H»>«ll*i' 



ONLY fB95mc VAT & P&P Joystick control opiion m 4 program package DEALERS CONTACT (Q903) 206076 

DISC VERSION NOW AVAILABLE £11.95 GENEROUS ROYALTIES PAID FOR GOOD MATERIAL 



3 DOUBLE ACTS FOR CHRISTMAS 

I □ Spook Spook (MUNCHER 20ma/es 3 skills. Hall erf Feme fG HOST MINE dig for gold watch for ghosts 6V snake) r6 96 

qO Space. Space (WOOL PACK m .mnuiog colour graphics. 3 ships 4 galames aliens galore 1 /MISSION ALPHA 30 & music) C7 9S 
I — Q Spy. Spy | KREMLIN escape frexn 3D mart m Kremlin/ BOND SKI lethal action on ski slopes 1 ) C6 96 

Jo GAMES DISC PACKAGE 

1< DMuTH:her Ghovt Mine Misson Aloha. Kremlin Esontisfci & FirenianUhe buildmg burrvs the peoole jump the neticopter bombs > F) CIS 95 
.^ EDUCATIONAL D COLOUR-SHAPE MATCH |2-4¥r old If SSScass D 747 SIMULATOR f8 95 D DISC VERSION HI 95 
lz □ WORD PERFECT (Friendly & versatile full facility 40 SO column word processor E7 95 ♦ CZ 95 Doc version 

OD TALKING TABLES TEACHER [Speaks when speech ROM fitted teaches multiplication with games &i questions) tl>96lcas»enet 
|p D FAMILY DISC PACKAGE Tabtn Teacher, Colour Shape Match Harmony Home Office & Word Perfect f 15 95 
|Q /^T\_ aoTAima doc Mrs tHi aitr ioa thi at it Alt prtOM mcKjde VAT & P&P Cheque oi PO to 

■sl 

1° 

IujI 



DOCTOR SOFT 



ADVANCED SOFTWARE 




"Doctor Soft 
H AMI 



258 Conevgree Road Peterborough P£2 RLR 



ADDRESS. 



I 



310 YOUR COMPUTER. OECEMSER 1983 




OUT 



AMBER 2466 

MATRIX PRINTER 

LOU RUNNING COST USING 
PLAIN PAPER 
USED UITH MANY COMPUTERS 
INCLUDING B8CUK10I .ATOM 

DPAGON -NEUBRAIN .ATARI , 



£ 78 



+VAT % £2 95 PtP 
Or for cf€tatl» send a 
lCH"9* 5AE to : 



IETHABY NUMBERING SYSTEMS LTD. 

Central Way 

Walworth Industrial Estate 

Andovei 

Hampshire SPlO SAL 

T*l:0264 65953 








DEFJSIQN KIWRLRIJND KlflGJC 




HELP HAIPY LARRY GET TO THE 
BOMBS BEFORE THEY EXPLODE AND 
MAKE HIM SAD BEWARE THE 
SKINHEADS SOOTS WHICH WILL 
CRUSH HtM IF HE IS CAUGHT AND 
AVOID CRASHING INTO THE DEMON 
SKULLS EXTRA POINTS CAN BE 
GAINED BY COLLECTJNG FiAGS 



A FAST ACTION MACHINE CODE 
GAME 

MOVE AROUND THE TUNNEL OF 
HYPERSPACE FIGHTING THE EVU 
ALIEN FORCES RUSH QUICKLY 
DOWN THE TUNNEL AVOIDING THE 
DEADLY SPIKES AND SCORE A 
BONUS BEFORE ENTERING THE NEXT 
Ifll&HlSiJ'M TR A g T Of H VP E R SPACE ' 



WQHM 






PLEASE RUSH ME 

DEFUSION48K @£5.50 

MAGIC WORD 16K/48K @ £4.95 
WHIRLWIND 48K @ C6.50 

CHEQUE/P.O. PAYABLE TO LYNDENHURST LTD! 



ACCEPT THE CHALLENGE OF 
GUIDING MAGIC WORM ON HIS 
JOURNEY TO THE SECRET CAVERN 
USE YOUR SKILL AND NERVE TO 
OVERCOME THE MANY OBSTACLES 
YOU WILL MEET ALONG THE WAY 
COMPLETE THE DANGEROUS 
JOURNEY INTO THE CAVERN AND 
OVERCOME THE FINAL CHALLENGE 
OF THE BOTTOMLESS PIT AND THE 
GAME IS YOURS' 



NAME 
ADDRESS 



SEND TO 

LYNDENHURST LTD 

38 ASHLEY ROAD 

LODNON N19 3AF 



LYNDENHURST 

Ltd 

TRADE ENQUIRIES: TEL: 01 263 9290 



YOOfi COMPUTER DECEMBER 1983 311 




310 STREATHAM HIGH ROAD, LONDON SW16 6HG 
Tel: 01 769 2B97 

Open Tues.-Sat. 10-30 em to 5.0 pen (Closed Mondays! 

SOFTWARE FROM ALL THE BEST SUPPLIERS 

- OVER THE COUNTER - 

PLUS GROWING RANGE OF PERIPHERALS 

SEE »T 'N TRY IT BEFORE YOU BUY IT 

SAE appreciated for catalogue — but please specify 

for which computet, 

DRN&ON m ZX SPECTRUM 



THE WORLD'S GREATEST RANGE OF 

SINCLAIR SOFTWARE 

PIONEERS IN 1981 - WAY AHEAD TODAY 



B BC-AC0RN 



Kt VBOtf«* CASSETTE 
ADDONS BOOKS 



MVt-W 



NEW! - BUFFER CLUB for regular customers. 
Special Offers — Lectures — Foreign Trips — 
Software Promotions, Ask For details of membership 
on your next visit. 



Mf MBffl OF THE COMPUTER TRADE ASSOCIATION 
GUARANTEE 



iQUfl FAin DEAL 



VISA 



ACCESS AMfHlCA* E»*HES5 - DINERS ClLlB 
»il CaBOS WEI COME 



5 



Quality Programmers 

for the 

COMMODORE 64 

FRUIT GAMBLER 

An AUTHENTIC and ADDICTIVE Simulation wrfirtan m Be*c and Machine 
cod* whtch makes effective mt Of colour, sound and monies 

Features ifwruda. 1 

• Four wheel* plus gamble 

• Special Wm wrrh gamble 

• tOp wing 1 0p tp f 1M, compile wrtb Win Card 

• Look* hh* and rum bhr? a real bull machine 

• Sue of Programme a mawive T 1 K 

MAGIC FOR ALL THE FAMILY 
Tape £6.95 

SPRITE PLAN 

A, truly orofacHonal programme enabling sprite* to be made, stored and 
retrieved wit hog! tedious mapping Or printing of data 

f tttvr ws rnctode 

• Keyboard Of (Oystich mpg| for drawing 

• Normal, enlarged, mirofrt *ndn*9at(v»iptil**tirTVi>liafi*0w*N p^CNJuc*<t 

• Editing faohtiC* including colour we, background colour and multicokntr 

• Sprue data finet (up (o 25 sprites! can b» created 

• Sub programme can be generated including DATA ttoe*, *pr»ie enable, 
without destroying mam programme and data, 

• Comprahansiv* m»(ructK>n» tupptod, 13K programme wr 

A MUST FOR THE KEEN PROGRAMMER 
Taps £8.95 

OmAv anaumM in rtcoff M . frK** mdud* f**r ptiti -etchttg. VA T. tMti » ttnafuf ml* 
**», matotdm art. 



uuu 



□ : 



PMS (Instruments! Ltd., 
(Software Division), 
Waldeck House, Reform Road, 
- Maidenhead, SL6 8BR. 
Tel: 10628) 76688 



Action Packed 100% Machine Code Arcade Software for DRAGON 32 







^* 




"EUccllcnt machine code ptoffarm for the Dragon" 

,- A different dati aJtofnhcr" 

Popular Computing Wtrkiy 

"ImxxJ imnlmenl for the rtOM IfOMll :>Li^rf ' 

Dragon User 



"Fast moving, and addictive — highly recomrnerHied* - 

H'rmh Mien and Software Revtfw 
"Mr *ortJ they tut iddteiivc" 

Oregon's Tetih 
" I he vound is very good indeed and the griphicf *rc outitamlmf " 

Popular Computing Ueekly 




3 games for 
£6,95 



LATEST RELEASE - AVAILABLE NOW 

Maurice Minor 

Out for a quint drive in yout Morris Minor when, you inadvertantly wander 
on io a race Irack and find yourself «n the middle of a Grand Prix To turn 
beck against the other care would be suicide The only Thing, to do Is grit 
your teeth, grip the wheel, put your loot down and make for the finishing 
line and safely. If you can avoid the crash barriers and qH slicks, dhve fast 
enough ro avoid being run over by Mano and Nelson behind you. then 
you can think about overtaking the cars in front. Can you make it before 
your car faAs to pieces? Another superb Arcade style game with animated 
high resolution colour graphics and sound, Requires one joystick 
A very fast aclion with acceieraior, damage report, timer, six levels of skill 
and hail of fame 
SUPPLIED ON CASSETTE E6.75 




3 games for 
£6.95 



All orders despatched by return 1st class post Callers and Traders enquiries welcome 
Available from SPECTRUM and other good software dealers 
J. MORRISON {MICROS} LTD. 
Dept. YC, 2 Glensdale Street, Leeds, LS9 9JJ. Tel. (05321 490987 



312 YOUR COMPUTER DECEMBER 1983 



^J 





GOTA 



y< 



I 




Ztoom'iever enangmg Kemno oHen ihv mcai wdlranc 3D rtf/rttwrwri on ttaZX Spectrin 

2rown is a* Ubmitr jwiai dog-nom cr* mew deadly grotm) aaac* f«Tt3*wfw««fjM<'««tnr 

pilots from tf*? mete pUyersT % it no* from w K Snwhi. John Menriet Sooa or one of our 

dHters fMtami* - rt'i Ziuptnofi<r - NDMf N LUDi 

"Without doubt the best comber game so far on the Spectrum" 

-Home Corip 



5^ 



>.thc name 
of the game 



5 Sir Thjmu Sowt 
Uwpooi Menrv-ndr Li 66W 
Deafer Elfiouifiw Contact 
Cota SiOtoi on 051-236 8100 (20 Snol 



r~> h 



/; 



/: 



/ 



/ 



iHr ^h** 



**#* 



Your Computer Christmas Fair 

This voucher entitles the bearer 
to - a SOp reduction on the 
purchase of one adult or child 
full price ticket. This cannot be 
used with any other offer. 



December 15-18, 1985 



DOFF 

^L Wembley Conference Centre 



<J- -*L> *> <> <> ^Uf- 
^JBut AJ^K-t ±JKmj, i_^B»t lAi. ±^m-t 

*W *X? *R* *W? *wr *W 



For Choice . . . 



Why not be spoilt for choice this Christmas and avoid 
all the usual rush, hassle and frustration of present buying, 
By visiting the first Your Computer Christmas Fair 
(December 15-18) you can be sure of seeing a truly vast 
range of microcomputer products, all under one roof at the 
Wembley Conference Centre, the most modem and 
comfortable exhibition venue in the country. 

Whether you're interested ih choosing a micro for 
home management, child education or games playing, you 
can see everything demonstrated at the show, with all your 





There's never been a better way to 
shop for micro computer presen ts . n 
So wrap up your Christmas 
gift worries at the Your 
Computer Christmas Fair. 

Sponsored by 

YOUR 
COMPUTER 

Organised by 

Reed Exhibitions 

Surrey House 

1 Throwley Way Sutton 

Surrey SMI 4QQ 

Tel: 01 643 8040 



questions answered by expert sales staff from the 
manufacturers, dealers and software houses- Huge amounts 
of software and hardware, add-ons like joysticks and 
printers, plus a special Sinclair Village, will be at the show, 
so you can purchase the system you really want. 

Large product stocks held on site mean no one will be 
disappointed and, because most exhibitors will accept major 
credit cards, you can try and buy in comfort, at the show. 

As Wembley Conference Centre has parking for a 
staggering 5,000 cars you will be able to take away all the 
purchases you make on the day. The Conference Centre, 
with its excellent and economical catering facilities, is the 
ideal pre Christmas treat for the whole family, away from the 
high street crush. 

Opening times are from 10 am to 6 pm every day except 
Friday - Special late night 8 pm closing. Because the 
exhibition remains open until 6 pm on the last Sunday 
before Christmas you can he assured of buying all your 
micro goodies. 



Admission Price 

£250 Adults 

XI -50 Children 





A MICRO SHOP FOR(NEARLY)EVERYONE. 
Serving Central and North London, well 
have everything from the latest game to 
word processers, and with our special 
20% discount you wort And better 
value. 



























1 1 


m 




* 




















+hk- 






J™ 













































.GJtoXM&Sfop 



378 Caledonian Rd Ni 6o9 35 59 (am only). Open Mon-Sat io-6. Weds 2pm. 



Lock up your children! 



The innocent -looking, smiling man to the right is after them. He's Tim HartneD, 
and he's after your kids for just one thing ... to make them RFA's. 
An B FA is & nchand famous author. Tun has done it before. 

Ciive Gilford is |ust 1 7, and his book MAKING THE MOST OF YOUR DRAGON has been 
the UK's best- selling Dragon book tor (he past four months. 

Seventeen -year old Scott Vincent saw his book DYNAMIC GAMES FOR YOUR TI 99MA 
outsell all other game books on the Interface Publications stand at the PCW show 
Chns Callender is only 1 5, but he already has three successful Interface books in pnnt — 
PUTTING YOUR BBC MICRO TO WORK. PUTTING YOUR ZX SPECTRUM TO 
WORK, and 36 CHALLENGING GAMES FOR THE BBC MICRO, which he co-wrote 
with 17- year-old Richmond student, Tim D Rogers. 

I stand being an RF A . you're reliable, can program quickly and well and can 
stick to a deadline, Tim would like to hear from you Send him a sample of 
your work along with a detailed synopsis d the book you'd like to write, 
and he'll get back to you 




You can get in touch with Tim by writing to this address: 
Tim Hartnell, RFA Department, Interface Publications, 
44-46 Earls Court Road, London W8 6EJ. 



II1TERRKE 

PUBLICATIONS 




Tun Harlnell has written more than 
35 b**t-»lling books on micfoeomputairv 
including America's number one computer 
book lot February and March 1983 
(MASTERING THE TTMEX SINCLAIR 1000. 
Co- authored by Dilwyn J one*, WaLd en books 
Survey). Recent works in the UK include THE 

GIANT BOOK OF COMPUTER GAMES. THE 
GIANT BOOK OF SPECTRUM GAMES. 
MAKING THE MOST OF YOUR HX20 and 
HOW TO PROGRAM THE IBM PC H« u 
aditer ot lb* Vu gin Bock* g*m«s taruN, aod »» 
romputw nnnsultrtnl to ForUona Papvr backs 



[Wt,IT*l ( Itl | II IHM4.MN 




dlapai,' "'ii»f«n'lJ» It to ■ br*abiart, 
tumlnt out ft (#>* caapcxw*** and twirw •■:■ 
■tan a*.jlV Lahnrtduft, ram(» a* 
InfurlatTia}? tot bt""* 1 ElprtrcaiVft 

•TFHfi ua!ra, t'snUni rjafco]* I 
u!«. tfaaaiatori, mi»uti, rap. 
dlpr*. trim. <Jloifc». ■*», 
sifltvl* em '.* rotatac, 
lK«fTamKW4 or rvjtmi ■■<■- 
rrquLrftf. Ow* eoaplata tf» Cipauur alii 
'paiarr it>' r» circuit - Mail Moltaj* 
l*v*|» turn r*d. Iw ImIi ran »■">■ 
Circuit* can t* dr-aftLVK*!. ajLKiwi and 
T—arflraLrd UKll Uw t-prtL«i aft 
rtoulrfd. til tftttvus Tni-hjTt ft •>)4rr1r» 
I rait F-it* nafil*ud ciiTuli* «r* h» 
wvri fw ft*Of* ■mrk and dlpplaj* *a» ■» 
•rnt to U» paimar . All foaajnaw* » 
full? lotarat-t Ua l.*. tfirj fan *+■*» '*» 
KM ol ml-mom nravteutlv aetlvatad [■ 
iha anjanri * raM aaclllaeora f ^ 
■*«n aac-Hlatlng' lamina tl §=>wn oi 

t-r|Ruitt. (Jf dvf^MJI i/«eMi» ar» 

KJI 



INYtSlWlM MOhlTO* 



*»; 



8. 



*•«» 










48 K SPECTRUM 



Cpecln 



ENFIELD HOUSE 
SWARDESTON 
NORWICH 
NORFOLK 

• •• •• 



Tfi* pma/aai m rxrwyt |.-n*:iw Laar Irtand}; 
In nkmuJ ! »' ; "' f r«i I.tu. i 

1' la-1 Aa . Tla>yn»ill Jul 1 j an) di tiaii . bdjbj 
wtIlLk Lracruri uxij Kid Art- EuJi* p.A*r*nL«d. 
Ftu - ** :nrluri* njridif pstav raldvld* - 
raqjlrlnc ftirriftU p]«aat add iOt, 



p-ftwis*! ItllUtt UtVIM>R 




i)1»r [»■<*' *|.HJ* up ■ ttrtoml 
EfrttTl* Iran 



■utrtan K Car ntf Uiar. 

?ro<Sl» taa*4 on irrtjwiJuml <+*j tci.tr i »t le • and ll 
wilier, (uod i!a«k». U on of any potami.t ghnrtnpi o* my 
« (i* li m i t U] TJtrlmtii uftrn MrU« en ■uttafel* fndr Lc 
mtort i*» batav*. aVlai on mm UhI *1|0m . rilarla ad 
miriliiina] f»»j na j i< .i ml fan offn 4>w;l*d snfortMtm. t,. 
•hw *i*-l nwi« of 2} i laa n Hi rkarlMti. snrl j5i^( ralnriH, 
<cf*T*n( fatli. It rar- t» uaad to plan 
baiamnd auti In ahantr and rjn i.ip»r«» in Jneh >»■ n, ai- 
lapairiaJ 'ji)t«_ Lail£*d to b* vwaptlcnailT Laar (i 



10 ftiaim ttianrinf I atth arlrat 

*w«T*d en ■ dMll bati. Will 
alapiar htildL^Bi, eri|itnft] mri 
ailM, pi n iir »y 

m]aa, wr»j«i atftH^iantt 
plm t»iT iiaafift praFtaj ?lW E *a 
piwlaia I ? d«T" i ™ d«y« ca hJ i 
«mi. juti—f.ttaily ufdatH lialf 
*ft*: saa ja*r. 




Unwt a»t rue- j.i-. ra-»T«j aha: 
tltctrontf* duai fcr diisrjl t#«i Input 
cturactarL*! :« of coa^M* imtfanW, 
Iwltdlnj auvrtrtvltf. #r» <-■■ 

napl£rr mn-Fejaa »|tJwf f t» or ff^**-; 
Joaiin as#lyirt, pntftantlng tnr output 
datl lit an <t t flaH iWi «f (ona, hatfa 
*r*pni.'j! aAd WrUtffl. ?* pPiap-ar 

dr'artf -Nt p i mm rf ft pOntar ml, H 

torract*.], can ?r«iM.-# ilatftllrd fraprnrj: 

dlaplayi by print in*, Itnfthkay* *J 
paar. KlftpnHf •*>*!• HUN ^Sthl^ ™xii»« 
n»Mmrk« • rht tnatnatlon hocit prw'.dr« 
"*w ««aapl»» taiBj iraajiatort, 
I^C.Pt bandpat* fliivn. pp K . 
«?.,. 4n liwaluaBlf !«r.: (a 
t» UU altaoftt and — "— - d*fttaT»ri. 



NMim lOIH l,i r 



9. da ll.l 14 . t M.I 14,* * 



' ilntlr aaanaal 
i4iirti fan b> cmarad vta tia 
kftfaoard, C*aph ■»■ ran ha wM 
or j » —r a n d in aulr Individual] 
l-a».-.Ua. nilvft MftJW *q|> 

Trlang!**, SlaultanHUa and 

Quadratlf Cduaclona. ArUhaKtf 
■MB, itand»rd . EtrwlMlah aril 
floMObiaM ^rf eon«laL|4> b-i^aan 
llita Bliii [avlatloi Cun*«. 




IIHTCD COW 



VOOH COMPUTER OECEMMH 1983 317 




If you want to know even 
more about computers. 

• GAMES 

Fram Pac-Man to Corplan — in 
December's special section we 
survey the entire games 
spectrum — from arcade games 
based on death and destruction 
to serious business and 
educational games that — at 
least in theory — teach you 
things while you're having fun! 

• REVIEWS 

Hardware on the test bench 
ranges from the small but 
extremely powerful Hewlett 
Packard series 16 with Sony 
micro-floppies, to the new Atari 
800 XL — which is more than a 
games machines. 
On the software side, Mike 
Lewis will be looking at some 
important add-on programmes 
for d Base 11. 

• AND MUCH MORE! 

Other features in the December 
issue range from an in-depth 
look at word processing on the 
Commodore 64 to an 
investigation of computer fraud. 
And there will be all the news of 
new micros, our regular columns 
and departments, plus pages of 
free software in Open File 



Make sure you 
the December 
issue of: 



don't 




Self Adhesive 
Cassette Labels 

if ON ROLLS OR SHEETS 

if IDEAL FOR USE IN TYPEWRITERS 

^ A SOON TO SOFTWARE PRODUCERS 

W CAN BE PRINTED WITH CLUB OR 
COMPANY LOGO OR SYMBOL 



cassette labels oh shafts 

< IS Libftt per ineat i 



1001 



ft 26 

fiood 

[17 00 



CASSETTE LABELS QH BOLL S 

I Cwnpivi* wrtti fueta feed perioral >or>» 
>v ■Hw uw m moel computer printers) 



Square or round enderj centre halm 
Mwwrmjm order 400 tehth 

HQlsbeb ill 00 
JOCOLabels fMOO 
W00 Labeii fXOO 



M Price* InfRxt* VAT and pottage peeking 

Eiceierrt discounts for large quantities 

Pleat* Mod tump top priming price hill and tempi* label* 

NEW FOR 1963 Sampler park of different Type* of computer label f » 






Unit A4 

Smued Dsan Centre 

Furolink Ind Estate 

Sittingbourne 

K«ntME10 3RN 



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Sirttngbourne 10795) 
2B425'24Hrs) 




O R W I N 
SOFTWARE 

2X81 CASSETTES 

«i Own h*a twill i repuiaton for value lof mon*v whvuere and 14 

CttWIc 4 oilers quantity 3S Wr*ll as qualilv 

5rrtc*^«s»r, October 82 
"ll each game we* on i separata tap* and Mima for f5 each I would swi 
lec&mmtrvJ litem But al on on* lor f5 I This tort of value lor money iust 
tun not bean seen before on any personal computer,' 

WnrXHii sounding pushy I would like 10 conclude (his review by spying rf 
you h*v* a ZX 81 and like game-, then you should buy Michael Owns 
CeeWfli* 

J attract* from 2X Corrwtme. Oct Nov '87 
"EajM yames. including an aiceami version of the Scramble arcade game 
East to operate graphrcatfv impress*.* and good value for money " 

The Tint** Saturday 1 1th December 198? 
(aDout Cassette i| 

CASSETTE 4 i GAMES FOR 1«K ZXfl El 

/> Scramble (machine code* *uh Mew poltch on oh) favourites 

3 stage* the quality of itw software and the 



Gunfight (machine code) 

■rrvader* ImaCh™ cpdet 

Gabty Invaders imachirtB code) 
Snafcebii (machete code) 
Life Imacfont code) 
30 Tic Trtc Too i8enc> 

CASSETTE 5 8 GAMES FOR WK ZXB1 



smooth action displays created on 
1 he screen make the program* 
wo«ih while lot anyone who hat a 

ZX 81 and plays I he games usmg [ 



Byte- man 1 machine codei 
Space Rescue (machine code' 
ar«ekoui 1 machine code) 
Sliir < machine code' 
Planetoids, (machine codei 
Dodgems imadwie coda) 
Draughts imachme code) 
Merchant iBearci 



n 

Most of the game* include wef 
presented msTructioni which make 
them easier to play It ApkMMnl 10 
we that Own'* kind of quainv '* 
available agam 

from revievH of Cassette 5 m Stndtit 
User, September T983 



/V a ir m#Ae your efrngnfs p*v*bh fit 

ORWIN SOFTWARE 

Dept VC. 26 Brownlow ftd. Hafleaden. London NW10 9QL 
ZX81 arid SPECTRUM SOFTWARE WANTED 
iRoyalttes or buy outright) 
Mnnt*r of lt§ C'O'npvtf Tndr *i 30c-- 1 



318 VOUft COMPUTER. DECEMBER 1983 



If you're still playing 

games with your 

COMPUTER 



Even to begin to realise rhe 
untapped potential of your micro is 
a task in itself. Those of you who 
confine its activity to playing games 
are merely restricting the wealth of 
knowledge and entertainment 
your computer can offer. 

For the price of a stamped 
addressed envelope, fvlFM Data 
Services will send you a 
comprehensive catalogue 
of book titles 



AOANOE 



that are the means to untap your 
potential as a programmer as well 
as that of your machine. 

The book prices start at £5.95. They 
are written by expert programmers, 
are produced by the largest 
publishing houses, and cover the 
leading micros such as Spectrum, 
ZX81, BBC Electron, Dragon, 
Commodore and Oric. The 
display below shows a small 
sample of the titles 
available. 



s* & 





CUT IT OUT! 



So go on - cut it out -* 

you can add a lot more colour to 

your micro. 



r 




©aESDQoan 



Send to: MFM Data Services Lid.. Depr YO. 
m Sevenoaks, Kent TN 1 5 9BD, 

The Complete Spectrum ROM Disassembly 
£995 

Commodore fr4 Machine Code Master £6 95 
| Advanced Programming Techniques for the 
8SCMrcro£7 95 
Q The Working Dragon 32 £5 9 5 

i ctron Book - BASIC. Sound & Graphics 
£7 95 

□ Please send me your FREE catalogue 

I endose my cheque/, money order for £ 

Name 

Address 



Postcode . 



Books £ 
P&P£ 
TOTAL 



Postage & Packing 
UK - add 80p per order 
Europe - add U 00 per ooofc 
Outside Europe - 12 00 per book 



-^ 



FREE EVALVAT10N SAMPLE FOR EDUCATIONAL BODIES 
* Ring for details 



The BBC-Side Way RAM System 



The BBC-Side Way RAM: 

The most exciting add-on for the BBC micro, which many have been waiting for 

Acorn to produce' 

Neater, more reliable and far more economical than plugging ROMs into your 

micro I 

What is the Solidisfc Side Way RAM Board? 

The Soiidisk Side Way Ram board is simply a small memory board which fits into a 

Side Way Rom socket on the BBC micro. Functionally, it is similar to other Side 

Way Roms in thai you can load into it anything like BASIC 2. FORTH, PASCAL BCPL, 

WORDWfSE. VIEW, DISC DOCTOR, EXMON, etc — in fact, any software normally 

sold on ROM, 

Acorn has planned to release a similar system on the ELECTRON. 

Rather than being a software piracy aid, the Side Way Rar/t Is the key solution to 

selling more software to users This is because the same programs can be sold 

Cheaper on tape or disk rather than on ROM, 

Solidisk's BBC Side Way Ram will also take you a step further towards the BBC 

SOLIDISK — a super fast and very user friendly Silicon drive. 

PRICE 4 including operating software and VAT): £3495 

The BBC-SOLIDISK 

The BBC-SOLIDISK is simply a memory board which is dedicated to working as a 
super fast disk drive. You must have at least one disk drive before using the 
BBC SOLIDISK You will not notice the presence of the BBC SOLIDISK before 
booting up the SOLIDISK operating system The computer will then display: 

BBC Computer 32K 
ACORN DFS 

PLUS SOLIDISK AS DRIVE 1 
100K AVAILABLE 

BASIC 

From now on, your system will have access 1o 2 disk drives: drive is the floppy 
disk end drive 1 is the SOLIDISK. There is no functional difference between the 2 
drives, since they are both controlled by Acorn's Disk Filing System, The SOLIDISK 
Filing System is merely added to handle read/write to drive 1 
The most striking impression when using the BBC SOLIDISK is one of user 
friendliness Not only does the system not produce any noise, or light up LEDs 
which may distract your attention, but also produces any file smoothly and 
naturally, For example, everyone will notice that when doing 'TYPE, the screen 
Stops slightly after every 256 character block With the BBC SOLIDISK, the screen 
just scrolls smoothly from beginning to end, no matter how long the file may be 
Another example: when you type in the name of the program it is there before you 
know ill Simply mind boggling speed. 

Other occasions when you will notice the speed of the BBC-SOLIDISK is when doing 
•COPY or "BACK-UP, Only the floppy drive will whirr away continuously, and even 
then the whole system will be twice as fast as a dual floppy drive system I 
Users spend next to no time in getting used to the BBC-SOLIDISK. since there is 
rtothmg to be learned, Once they have tried it, they wonder how people can spend 
£200 for a second floppy drive! 
PRICE (including operating software and V.AT,|: El 19 95 

TECHNICAL SPECIFICATIONS: 

BBC-Side Way RAM: 

MEMORY CAPACITY, 16K bytes, directly expandable to 32k bytes 

ADDRESSING: from &S0OO to BFFF in paged mode (sharing the same memory 

space with other Side Way Roms) 

SIDE WAY PAGE IDENTITY: 15 (and 14 if expended to 32K), write protected. 

OPERATING SOFTWARE on 40 track single density disc, (or tape at 1200 Bauds on 

request! 

POWER CONSUMPTION: less then 300 mAW No eKtre PSU required. 

DIMENSIONS: 

Cartridge base: 50mm x 11 mm * 20 mm 

Rom cartridge: 45 mm x 26 mm x 7 mm 

Side Way Ram Card: 190 mm x 47 mm m 7 mm 

BBC-SOLIDISK: 

MEMORY CAPACITY: 128K bytes, 100k bytes formatted a 

Ram The remaining space is reserved for the operating 

ADDRESSING: from &B0OO to &BFFF in paged mode. 

SIDE WAY PAGE IDENTITY from 6 to 15 Can be used as 8 

OPERATING SOFTWARE, Solidiak overlay, requires ACORN 

090 (the only official release on DFS). available on 40 track 

density floppy disk. 

POWER CONSUMPTION: less than 800 mA /5V, no extra 

required 

DIMENSIONS 

The BBC-Soli disk is the 32k Side Way Rem with a 96k Sol 

extension measuring 168 mm x 35 mm x 10 mm. 



MADE IN ENGLAND 

BY SOLIDISK TECHNOLOGY LIMITED 

17 SWEYNE AVENUE SOUTHEND-ON-SEA 

Essex S52 6JQ / 

TEL: SOUTHEND (0702) 354674 f 




THE CARTRIDGE BASE 



W99WWK 
THE ROM CARTRIDGE 







THE SIDE WAY RAM CARD 



illinium 



THE SILICON DISK EXTENSION 




INSTALLING THE CARTRIDGE BASE 




0) 

o 

o 

m 

z 
o 

m 

O 

C 

3 
m 

o 



USING THE ROM 
CARTRIDGE TO TRANSFER 
SOFTWARE ON DISK 



THE SIDE WAY RAM / 
NOW REPLACES THEy 

homs y 




THE SOUWSK SUPEH y> 
FAST DRIVE »S NOW * 
INSTALLED / 





Ssrsh ttncts httr ntme on ifi* Ktysotf Famfy Tne Prvgrtm 



Introducing 4 New Keysoft programs 
for your family to use and enjoy! 




£850 



Big value for all your family? 

4 great programs in one — 

Bank account- keep out of the redf 

Address file- computerise your 

little black book! 
Shopping List Printer- a helpful 

reminder! 
AND an addictive (non- violent) 2 
player game for the young at heart! 

Choose your own diet! 
This scientifically based program 
helps you ease off those excess 
pounds without exhausting aerobiesi 
Calculate your own diet, choosing the 
foods you want to eat Lose weight at 
your own pace — You now have the 
freedom to personalise your dating. 



£g_9 5 (CBM64 available £7.95) 



rcyscrr 

Dealer enquiries welcome 

All programs are for the 48 K Spectrum 

Please allow 28 days for delivery 
Postage paid for U.K. Orders 
Add 1596 for Overseas Orders 




Keep tabs on your relations! 

Looking for a long lost uncle? Are 
you related to someone famous? 
Use this program to keep records to 
trace your family links. Even 
produces a family tree diagram. 
Options to amend, update and 
browse through the family records. 



£650 





Versatile filing program 

Lots of uses in the office and home 

with up to 40 user-defmiable fields 

Options to save onto MICRODRIVE or 

cassette 

Menu driven — user friendly 

Fast machine- code search facility 

Variable length records to give 

efficient use of memory. 
£7.95 

Send to:* (No stamp required for U.K. Orders) 
KEYSOFT, FREEPGST, LONDON N1 7 6BR 



□ Family Pick D Kvyfcta O The Dwitcnn D Famd* Trw 



Addnu 



Po»iC«l* 



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PANIC IN P£ */&£ 
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OU FOR PAKTZ 



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VIRGIN G AME S GANG 

Our GANG it growing in number* all the 
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catching double-decker, game* but will 
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In con junction (where possible) with 
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GAMES 
AVAILABILITY 

If your LOCAL RETAILER is not yet 
stocking VVtON GAMES - tell him he 
should Be - but. however, you can 

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th«(i<m|warU. 

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An intriguing 
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THE "I WANT TO BE 
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DEPARTMENT 

It you have a yearning to be 
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good graphics, tor xnyoUhe popular 
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UNDAUttim 

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GAMES LTD. 61^63 PORTOGILLO ROAD LONDON W11 3 DO 



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ames are available from W.M. SAUTH, ROOTS, DM OWI , SPSCTRUM, MKROMANAGBMENT, 
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vicKn+nt 

f*f*WSKX] 
VGC1002 



£5.95 ■ ha. 




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An •rtftoal. tm*t- 



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CLASSIFIED 



01- 
661 3036 

Contact: Claire Notley 



ADVERTISEMENT RATES 



Copy Date 



Linage: *0p per word 
(Mm, 15 words] 
Box No £4 00 e*fro 
Linage advertisement* are 
prepayable and the order lorm 

Eublithed in this section should 
• completed and returned 
with remittance. Credit Card 
facilities ore ovo liable 



Display — roles per s« (Min, 2scc) 

One insertion £8.50 

Three insertions £8.20 

Six insertions £8.00 

Twelve insertions £7, 50 

Display advertisers should 
preferably reserve space by phone. 



Closing date far Classified 
advertisements is ihe 10th of th* 
month preceding publication 
dote. 
Post to 

Your Computer Classified 
Deportment Roam H211, 
Quadrant House The Quadrant 
Sutton Surrey SM2 5AS. 



Britain's Biggest Selling Home Computer Magazine, 



tDUCATiQKAL mjiiit bmiMtion pUDgrvn 
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100's of Games. Books and Accessories 
available for all popular home computers. 
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All Hardware and Software available tax- 
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293CHISWICK HIGH RD. 

LONDON W.4 

TEL: 01-994 4947 

Wl 



VIC IMITATOR 

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M £*■¥ tow M rn&rvn 

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TEACHER'S MARK0OOK 

4IX SrJKtrum S»wfr hajfi itt* y«ar w«h 
a eompuWH*) ™m«*l HoXk *i rom 
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tnd«i of m«nr mw (f SO. 



gnphiatt. ate AntoJpl * 
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time is aW important 



124 YOUR COMPUTER OECFMBFR 1903 



r 



o 



URGENTLY REOUIRE 

GAMES PROGRAMS 

Ocean Publishing Limited. DuDlisners for a major 

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for home micro's. 

ZX SPECTRUM. COMMODORE 64, ORIC, DRAGON, VIC- 10 

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Our national oeaier network ensures maximum sales 

Should your program De accepted we will pay top 

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write in confidence to the 

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Ocean Publishing Limited, 
Rant Buildings, Stanley Street Manchester M3 5FD. 
OR TELEPHONE 061-832 7049 „... 



SfiCiSi OS 1 2 compfcu includn Acwmoft 
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Slate colour - Meek Of wfur* 

ChtQon.-PO. tot £10 55 



3 Northing ton Stmt 
London WC1N 2JE 



&*l tti*Wula« OH! 'B**"~. Sttrxl^e 

I V £Xa< mHormtfton lor gr*pK* f 1 130 
Tamil TKhnotagt 5MM1 



HAFK,A'V tuginvi Jwrll *fl* - } ** 
frvtt l«mo« danmvl S^iwOarl FODS&A l«K 
HAM cam fflCCPM two 6 daft D*k card 
V*l*fj monitor A» «WMj*l Only f 950 T*l 
WW3SSS3 «)!' 

OflAOON WttHr Mil an unci Hi Bm 
DiHwanl hh towuft. angiflt. A aub-fBUUP* 
ID tufl" *M tac Diwvm f $ M S^rnvh 
Soltwtni. 4 E**wp*> frm. W*». AtM*d*«ri 

■M'11 



LYNX 

SOFTWARE FROM BUS-TECH 

NEW RELEASES! 

•YNXVAfrERS* by Marc de Gentile Williams 

100% Machine Code arcade game — 
What more can be say about this 

all time classic- £7,00 

*ROBORUIT by G. j. Banks 

You are the last free robot on earth and it is your duty to 

free earth from the evil robot, you must climb the 6 

levels of the evil robots domain £6.00 




iReoSM MM *■* MCfc 

trOframftm 



n t*a iMs« tfJ-tf i ■*■# mI ; 



*T 



r m* 

1 TTn lecond atrc G* i*)«i tmootH 1 fo* mnnmM o' i vn»n 

Hot hairimmtfi **nlf4 IThsv prCfT*™ **«** »• "< W llj Wt «wf IH 

->lh |*Mf r«4«TiM food 't; |f i Km lor jour •Hard pta*»* i»rU 
dwtwnwttuton u ftUS-TECH 



»o» of 



with 



Potuoei 

Pr<et incluoc p&p cl>eque» or P O mide pi^ibte co BUS-TECH 
I? Land port Terrac*, Portsmouth. Hants. POl 2RG. 

Ple«e £ I p&p outnde U K 

0«*l*r «nquir>« welcome 
Deli»«rjr (ujrimetd wuhm 21 dijrf or mooer back 

PLEASE SEND AN SAE FOR 
FULL SOFTWARE LIST 



in 



Q 



JHW 



I 4rlk 



WIN 

THE 

POOLS? 



SPECTADRAW 2 - THE BEST SELLING 
POOLS PREDICTION PROGRAM 
FOR THE 48K ZX SPECTRUM 

The program looks at the recent form of the teams playing bl each 
wttk'l English and Scotush lootball kaogue maichoa and then 
refers to a large database to see what has happened in the past 
when teams with similar form met By combining the lessons 
laamt from the past with the teems' current league position, the 
program generates a draw probability lac tor for each match- It can 
than identify the matches which are likely to vwW draws and 
output suitable predictions. It will also output the least likely draws 
for the benefit of those who prefer the fixed odds lines on 
coupons 

Program. 8000 match database (both on high quality 
cassette*! and instruction manual f 12.95 inclusive 

NEW!!! 5PECTASORT - 

THE PERM GENERATION PROGRAM 

Spectftsort takes the T4 most likely and 10 least likely draw 
predictions and produces ten 6 from 10 full over perms, enahlmu. 
you to complete vour pools coupon directly from the screen, The 
program will run on its own m 1BK, using your own predictions, or 
has i he unique feature of being able to merge with 
SPECTADRAW 2 to provide a complete Poofs Prediction 
package 1 ' 

Spectasort program on high quality cassette £4.96 inclusive 

(Cheque* POs payable to B.S. McMeyi 

SPECTADRAW 

1 Cowleaze, Chinnor, Oxford 0X9 4TO 



ZX SPECTRUM 



RELOCATABLE PRINTLINE UTILITY 
Interfaces: Cobra RS-232, Morcx, Kcmpston/- 
Hilderbay 

Printers: Epson, OKI, Star and compatible printers 
Features: LL1ST, LPRINT — 335 byies screen copy 
— 343 bytes plus BASIC loader thai "lets you sci ii all 
up with prompts £6.95 

Also available: Household package 

Side A — Personal Cheque-book 500 entries per tile 

on tape without too much fuss but a prim out if 

required, 

Side B — Shopping list program that allows you to 
prim out your intended purchases. £5,00 

Cheques/POs to: 

MICRODOT SOFTWARE 

30 Hazlemere Court, 26 Palace Road 

London SW2 3NH. 

Teh 01-674 7795 

Also available from: 

The Micro Sufi ware Shop 

376 Caledonian Koad, Lundun \ I . 

BUFFER MICRO LTD., Streatham His-h Road, 

London SWI6 



YOUfi COMPUTER MCEMBER 1983 326 



SPtCTMM 
CHiSS 

Dare you face 
TbeTurk 

The original Turk was an 
eighteenth century auto- 
nation, a life-are mechan- 
ical figure respondent in 
Turkish costume and seated 
behind a wooden cabinet 
on which a chess board and 
pieces were placed . 

OCP now offer you the 
twentieth century equiva- 
lent of that Turk - a chess 
playing computer program 
The Turk challenges you 

to a game of chess! 




MANY 

OPTIONS 

INCLUDE: 

•6 Levels of Difficulty 

• Demonstration Mode 

• Board Editor 
•Games Printout Facility 

• Blru Chess Against the 
Clock 

•Two Player Mode 
•Unfinished Games can be 
Stored 

• Recommended Move 

FULL INSTRUCTIONS 

PROVIDED 

CHESS THE TURK 

ONLY £8.95 

Post order to 

Oxford Computer 

Publishing, 

P.O. Box 99, Oxford. 

134.'* 



SPECTRUM 
KOPYKAT 

IMPROVED PERFORMANCE 
IlMpW \hu £>■■!. any 

program if now m **sv a* 
ir.d 5A.VI «n prog: 

JUr » ' :- run program can be 

, onto a man tap* I 
program* that cannot be atopped car. 
now ba cppwd 1 00 pat machine cod* 
CoplW h**4*fr8*t (ilea Fun' 
waroe SPECTRUM KOPYKAT ua*» no 
pragrani ar** * rmH u» | • 
•¥** 4 1 7Koiopuitvdt:p:if .' 

lit, m*C" TREE 

Header Re-adat prour 

Durpalchrd by (ir»l elaaa raHTB of 

rU.Mi 

MEDSOFT 

61 Aideert Road. Inta-ka 

Dofwuiar DN2 5EF 



LYNX 



KING SOLOMON - 5 MINES 
A rindomiifd. relit pttiifi| 
uurc, No two famn arc ihe 
Side 2 ha* two jjaphici 
proirami thai fhgn atf iKc 
capabilities or ih* LYNN 

AM for Ffi 95 mc pttp 

HARVEST SOFTWARE 

Weai Wind*. Trad'avgon Road. 

Mawgan Porlh, Newquay 

Cornwall TRS4DH 

mn 



MICRO 



BUFFER «%? 



SINCLAIR - VIC 20 
BBC MICRO 

SOFTWARE 

GIFT 
VOUCHERS 

AVAILABLE NOW M TO CM 

DRAGON 32 - 
COMMODORE 64 



310 STREATHAM HIGH RD. 
LONDON SW16 ... 




SYSTEM-SOFT 



FORTHHWATTROM IH1H.1M 



SPEITHUM 



a ii a i '" 






7>Him tmufiwi 



tsn 
tua 



"RBC MICKO 



**i*i*eiawyiwi 
■£f«!S 



I » i iii 



5 2 



PfWW U 




T>*»tafaf AfJ 



ImtTT GaMKtk rVsT iMmvdnl) 






VIC.Mi 



AMta 



IWih«awi 



13 *t 

an 



NIW! auhjicou it hiok tnm twihu nuprttt 4**acT*LU - tni 

J -rr'^ **'«M«*fc»a> , Miiiytf.i n i irl i i TiT i'nr "'Tmm TVinT 1~T*"T 



^^.toiff in TfTTtii tnrt itittfTt »- 1^ ■ 



—■ ■■* *■ * *- 



SPLCIAL 
OFFER 



JOYSTICKS 

DRAGON ANALOGUE 

JOYSTICKS 

GREAT FOR GAMES 

ONIV f 14 SO A PAIR 

■ r 1 00 ptjp 

CWOTO 

INTROLVE 

21 WOODMOUSE ROAD 
LONDON Mt?9EN 



EPROM 
PROGRAMMER 

for VjC-20 Commodore W 
vtty simple, building 
instructions and software £5. 

HERZBERG, BOX 3662. 

HAIFA 31036. ISRAEL. 



747 FLIGHT SIMULATOR 



*^ m ' ii M *Jj T iM Ti ITii *■ Ni n*« 
^ ■ fc l* « H t'-MTa^^r^l^■T^^ 



K-* i« Hrt. ^tfw« ■ * q ^ 






*nst 



■ ■■■ 








ACTUAL SCREEN PHOTOGRAPH 



SHARP M/KII 
fp fnlhv dltl, \s rn*w 

Tri. 01-653 1374 lhi> 
Il-I. 0I-2W 14V I - Lvv 



IHJST COM K 



:o-M, Draj|on 22, Aiar* NO. 

BBC. A * B Electron and 

Sptfirum C*u unit CIV (old 

model t C2N I i30 & Atari in natural 

qualii; vmyl. Ju*i tend f 3 95 

iSpfcirum 11.301 or 0.94 to iac. 

cau. eew »iaun) computer and 

L-mwiic model [No itamp required i 

tauciU «rvet *tly £1 .50 tO: 

ALLEN ENTEBPRIStlS 

FREEPOST V.C 

LUTON LL 2 8BR 

Tndt I tiiiuirirv Welcome 



CROSS MY PALM WITH SILVIA 



DESTINY 




i H iMVl Ifttrfu — J t^mjj* tn PO *<r i* *5 
(nc JM« pKlilf I 

Mv«at cnt Km ol rotr tiflw* 

tint l«d m H*» with 01 

Ml □< J Hiratvd pith o» plitvif 
tV* .rrf Our ti* fdllT UWU 

aackal -«* tw UK af 
Hall Ml ian 

TNi rixMif ii Hunt cm the 
■meul aMntr, Hldvn* L«n«rrn*nd 

M eeOOA -far 1 rtid»| 

IMllX F**H*f 



4 Hajht C«mpuT>nt 



4( Ttnrrttra* Lan*, Cook, 

Usa (mt 'or dMs« s* rsrcKanxif anarvm vK irtatm fw 



DM14 H|, 

| **► ^aoMaai 



HO* ii 



SPECTRUM 
SOFTWARE 

Some proarami look juii fieai. In 
ihe fjouy adverts bui turn out 10 be 
(fotapointmj, tend * namp for CM 
free talaJofue of hundreds of tn«d 
and leucd ctuciio Wr only itoct 
Ihe ben software from the lop wft- 
wart company-i. " 

TOP DISCOUNTS 
*£irc*tfJW .MMir wt**tanred cai- 
«itts for ti. SO, 

' SOFTWARE Ctt'B 

Video Iniernauorval 

(SoH war r I 

Z9I Hifji Street, tpping, 

Eaan CMI6 4DA 



PROGRAMMERS 

»'c urirnilt requiff good aajk] 
u»ri*a/t for ihe ZX ^PKlmrfl For iht 
ri(,hi matmal « uff*i — IrflpKWfd 
fliirkct fWAtirtixn — Expert prrwnU 
IMM — Worhl Writ OitntNiion — Toiil 
litHnrmnoo in (ht U K and a higli 15"V 
Kin ill tr 

SPARTAN SOFTWARE 

9 Cotswold TarrBCft, 
Chipping Norton. 0*on,v.+ i< 



NOTICE TO PARENTS from INFO-STREAM 
Computer Assisted Learning 

Although the use of microcomputers in primary and secondary 
schools is becoming more widespread, (here are - and are always 
likely to be — far more pupils than available machines, which 
means ihai many students have very limited time on a school 
compute' 

INFO STREAM offers software for home ZX81, SPECTRUM, 
BBC and VIC 20 micros to help solve the prObFam of scarce school 
resource* The programs cover most subjects in- the school 
curriculum and cete for all ages and abilities. They range from 
early learning for three year olds through to revision aids for higher 
examinations. 

For a 42 page catalogue detailing over 220 educational programs, 
please sand £1 (refundable on first order! to;- INFO-STREAM 
lOept YCl. 36a Chase Green Avenue, Enfield, Midd*. EN2 8EB- 



in tour r ivi\r, room: 

<mi 4*h sptiiium Irun mactliiw Ki> 
r>«^ihMf — ru*li. nwlao, r*mMt. 
Iicrrrfji, ladarhN. nm vntniUiol '\um" 
ruii>u!' Injwihct mm "r>i» i-Air iijrih 

riflll' iftj u1Jj,o A (jJlkC's — i |ti 

oifinal pociarm, on *">r vjr>«r*lr '«" 
f*.*5 imt p*f 

II )'KlH.N\M- 
1 VrhoK rr>ir. I ai|HrH>»a, 

SM.ir.Hrf SIVlHl, 



IHStOl M PRICES 

Coitipulm and Milmarc. all ai diwouiu 

jsriwt, lull ian|< from BBC Id ZX»I 

Vod SAl for lalcil t'aiak*!--- 

AfSOfT 

frrpQH iMIJ. 

1S9 Btmttl Wood lanr, 

4ik!tvd. Sutfti KTlt 1BK ih >c 



32B YOUR COMPUTES DECEMBER 19B3 






/*, 



t 



T-'AL^L 



M 



( fr( 






v. 



WANTED 

:16/48K SPECTRUM 
ATARI 400/800 
Games of all types 

EDUCATIONAL 

BUSINESS 

UTILITIES 

Games must be original 

and of High Quality 

Visual Impact 

First class royalties paid. 

Have you seen our new sensational 

Arcade game. Can you equal or better it.?? 

Ifsocontact: MR KEVIN GREEN 

NOBLE HOUSE SOFTWARE 

29, Kingbrude Terrace Inverness Scotland 

Tel. Inverness (0463) 2 20611 



biAiWi 




ATOM Software 


Blockbuster 


€600 


Meanws 


re oo 


Bricfeowt 


C6 00 


Ptat/VDU 


reoo 


Othello 


C600 


Designer 


£7 00 


Shape Table 


£7 00 


Space Conq 


£6 00 


Stock Market 


£6\0Q 


BBC Software 




Invasion 


E8 00 


Software wanted - 




DRAGON. TEXAS 




ATOM, BBC. ZXB1 


$#nd for caittogue 


243 Sutton Road 


. 


Mansfield, Notts 




NG1BBHR. 





Pwwutv %& *«*», Sw Tab* (Of Cfliw»c*e»» 
84, a* f* a** OwQuM. P * to J«W 
Tan! ?# Fncftanv«fd ftoad VW K rtun 

44J 10 



B*rU 



HI 



SPKCIRIM /\H\ 
f 25 KEYBOARDS £25 

I ull ua <ype»nter Kyle kri t»*F di 
42 fan action full irat el (red miftKi 
km 1 ihifi, ipacc bar, sturdy 
II'WiJ'* caie quick eaiy fuuni 
PtHHK 0602 4"?*r? J . 

SPECTRUM ZX11 
£25 KEYBOARDS £25 



for »n,i spUTJtliM tap.*, ill 
program ih*t ■* ut **vt isf \1on| > 
■ACK luwantif <M» V>Mf of littt 
upturn Mat 4- * ,.tptcd, C0NTI.V 
i kwduu of muft pro»i«fti p*iri. 
Vnif). HtAMRLtSS: IqWi. ■««• 
«c; (Jin ttttnih 44 » Do<* u> oihcr 
caput pffw at bu, ■ 

Mk.1 Hafbatouth, I f*t «m •• 

LdiK«;Aw»l Software 1 S M for Jciiili 



Stand H«nJ Alfr. W<t**ra If 1* 

A*0 VtW '«■"<■ bwajW SA£ A Morton, 4 

MHwtHi Ao*d. DHHburv, W. Yorta WH J 

IPS ST| 10 



ZXB1 T6K 

ORIENTEER 

•port f4 *fc 

THE STARS 

Aaeogma major certtmHimrn «•»** 

E4 M 

Johnson Soft war* 

17 Wvndwaya Drive. 

Dipton. Stanley, 
Co. Durham DH9 9J0 



Stock Lou'dcrxxi' Hun*»()i ot ttlaa 'o- 
Apcta Ami. TAS40 »™a • t«* f« IBM & 
Ofaflon. **>rfw>j ov« CI5 0C meal una* 
riDOO Tat OTBI4C4U|7tl!nw) MS 10 



AM*, pi. 4i * ten. 2 

6i> crt I Bam Paacat 
ono Tai 02t 557 1570 



ate f1JW 
497 10 



Atom wn«l luN a icaach aynlfiaaa 
modi* lw around C20 Ml (ontl'VCOun 
data** - darnonaKaton mgramt (J Cttow 
mtiduM corxl>uct>0» 0*1*4* in i a W 1 1 A 

Wor»*a, J 0#itMk Ooaa. Bariaynaat*. *«rt 
0A4 7AP 541 10 



Programmer! mm*) iB«**C'M*C*«t*l lot 

moaT Iwm fwroa to oa*rth3p omtc and Iwupa 
iwaga W»n« Compui** Sheo So'iwar* P0 
So. 79. London SI3 7 *L 5CJ 10 

Bppy, Irn Wjl & «*>. BTW fS00 Spw. 
tnca|Ampt SOrfktoiit t-iCi . 9^4 LCMAvt Swt f 
|RG1*SQ»7MrS»187B 61? 10 




*r»«» 



BANISH LOADing PROBLEMS * ^ 

for only 



•TATI XKB1 o<- gPICTBUM 




EUNCA PRODUCTS LTD. 
Lyon Works, Cape* Street, 
Sheffield 6. (te!07i2 339770 



£14-93 

Inc VAT -Post FREE 



100,000 CASSETTES 
PER WEEK 



Thi* is the cMpnciiy of 
I )al Melon v'* mew cii->w«,*tlv 
dupHcaiiixi pj*flt — 
Europe's most advanced 
d*4* dnpUcAtlcra Utility 

♦ Feetctt poaaJblc 
turn round - i >n Mnall or 
largfi: ftui-.. wv ufTcr the 

fft«tc*t dUhcrj 

♦ \'cw low conlracl 
ra(f!i — i h*.' ni'is! 
cocripeitth-« price* 
avulluliU- \\ i'li 
spci'iid ru ics for 
rcrOtlar i"uslomcr> 

♦ Top <|uadjtv Ik 
rcHabUilv — vvi- hfltv 




i hi- rtiruuitoo (or the hinhi*Hi 
quality prtxlucl. Swtae 
CBaae ttc i« *lk* and chrome 
i j]»c used exclusively 

* Faulty cMtmeWe* 
eliminated — iiur reject ratr 
|g lieli w l 1 * — the industrv's 

betM 

♦ i liitntii built plant 
— i.iur specially 
built . i |in |. men ( 

exekisi^-h Em 
il.iiii dupLteaiKMl 



Hivmi; yoa j 
1 J L-nnsistenily Itcttcr 

^ DL J-fel^ !*«*«' 

Di«C\CLX)NE 

DATACLOXE Ltd., the «peetallMi in sufiware dupbeaiJun. 
run 1, H*«Hn Sqtart, Soslln Road, U«dno W38DH. 

Tel 01-99»mM Idea 21H7<- t*-w 



YOUR COMPUTER DECEMMB 1983 327 



TAPh COPIER 



The mosi advanced BACK UP COPIER for ANV SPECTRUM 
available. MICRODRIVE COMPATIBLE. Does any other copier 
come near 1 ? 
L(X)K at only SOME of its options: 

* MAXBYTES copies nearly all the memory! Appro* 47, 9K 
<t5,t»K for 16K Spectrum, 

* Verifies. Repeal copies, Auto, Abort. STOPS programs. 

* Loads CONTINUOUSLY (no! just one pan at a time like mosl 
copters) even withoui pressing a key, 

'Copies HEADER LESS and ALL programs that we are aware of! 

* Very user friendly and simple io use, 

LISTEN. We arc so convinced thai you will be pleased with our 
produtl that we offer a FULL MONEY BACK GUARANTEE if 
you are noi fully sat is Tied. Coal only £4. SO. Education one. Mark* 
Book — SAE for full dtiaJLs. 



*OJ " 



LERM, DKPT VC 

lb Miiitcpit l)ri>e. ( 'fHinnhjim\ Mkl ftdrhnrnUKh. tales. 



SPECTRUM 1674BK 
TAPE BREAKER 2. 3 

C o p aaj i%pii«1 wi hwjowia** ten vpfii 

vantcetwnarxl mullah oopvcaAorwiiee* 
no program area PHj* m» Itp* h*ww. 
rftim ptegrttn 16 4flKf« H 

JEDHI CHASE 
(■urtutf bv *n *v«f a t mr g i-**nb*r of 



Querf* M yiiu UW *r Ound 

'NEW* 

C***aneio nwaodnva fec*«v How* vou id 

copy limit tape to rTtcrodnirs b mod 

OHtrilki f«M 

0*o**t «fPOif« SPECTP.ASOFT 

C*0ital H«M. Mark,*! Mac* 

Icndon WJ SAL BO 1 1 



DRAGON * program* to a yi b entartaat 
Ullfyn Awobct Lander. Bad**** Trgn 

Srmt EaCaAanl *■•*«• *r juW f2 9* Sand 
fftaoua* PO i* Ownd XAwn. J M«*an 
GartH Laarfa'O bos it 



SPECTRUM 
TEACHER DATA 

Mark processor 4BK soft, 
graph, grade ''genuinely use- 
ful". £5,20. 

Bfian Karris 
S Thompson ltd, 
BOLTON. vmm 



sorrwJWE to help you 
WIN THE POOLS 



V 



POOLSWINNEH 
T h* nun toptwicitad Pooat Piaov t«yi 

Am* avaAebaj Goa* p«*wjwiw» ol tear* 
draw*. *t»rp, homaaof away* h i* m on 
Two itiinn— i ItaMftg o»n It) 000 
•natch** indudedt 

Th« ifairi—a n auf omahcaBY yc j daled 
a reaufi *>• *nt*r*d Can b* u**d « 
timpla mod*. Ol with parameter 
adfirttirwili IO . ft jiiol an your own unqu* 
forfcaM flwthod 

(u*v doeumenlao, w iW j * now *o» 
APPLE SPECTRUM DRAGON. IX«l 
lISKl BBC B COM**OP0HE 64 

ru«3Ai( wctus/vf 
Selec Software (VCl 

17 CohHKlMor Lane 
Pm dt*. Chvthi" 

DC 1 471 7 J 74 
At orem super tnetf 6y 'trum pen 



1 1 



SPCCTniTMcopvteoe GaetwanvcM. i* to 
1S8* on a IB* macrw* Load* Sav**. 



SPECTRUM umn 16 46K Wry 
noun on O tP V' aig LI dafmad QftphC* when 
you could hev* ovaf 100 on hand inotarrdv 
irXajOng Tar** Plan**, invader* e*c Onty 

n on ii.ii iii in rtnri nimi* i n bur 

<? Whh< YV*» rtflh*onti W*i SW 7NT 

NtSM 

CHJSTtcwa™ So*eiA*ni. r>*tt M pragon, 
V« U n M Tiih. BBC f J » «c pf»p 
A**o mlien for pmm. rnwatui. oSak 
dam ate Convuiacj** ?$ 24 H^n Siraai . 
SulwnCoaJta*). MtaMdtodi MI/11 



Tlat oa»» copw mtach actua** copa* 
KHri and Ol»*mt a oantana MONfv BACK 

nUARANttf f-lfS B"*n Aaiilv 30 

Hw aanSwi H**d. Hopa. Ha* wiaittam 

601 11 



MW ">i W VIW 

rn*i mr na *m>> u 

IJ V kwvtff IU1 <D 

■* eai ki oh io 

aat^brrE**f >■>>■•* **•■*•*' ttN 
>•• *«• nur S9 eeatRKia taw 

« of tkr 4rflaa| Uri 

a atl i i , Irri rria lahna* tH M fcm **■ 

act w 4 «aar*nari to iwt iw wa 



4apH4: t« CUOAO j wnsd prcajrunm 

•ukm aianiiaia iht sac Utiifr In 



v«Vj The nactai iDaiimnJ aa in* 

lar mun , aaAsai actus***) lie orifnal 

Aaa* arpiil- <b ■■ Ini if iiiimj Sow* 
far am Um* I Mtd 

Claaia Tti HJHiSSOITH ABf 

W aa^ W. aacnbt^arv^ 
I— n Ml MI "»<* 



LVKX and KEVTEK 
can laacn vou and vow f am#y io touch 
in* Wi* KEVTCK vour LtfaX tawomat 



luavlxwrd and rfanfav lo P*i 
compirtt irtennad eaurat » *a*< 
nCTtiunarratadprKlicaataacftiiap Mora 
cwpnptung *** lama ajmwl Tape 
tjrogia«ri mo* & fan loadi and nc aWt 
(S M "t o&p CnawiCM, t> » to; - 

OAIFTEK coon 

< amiiTiNaM Od**.. Hicwn. N Vewhc 



CBM64 Sofn*ai* now *«ciicbt* cIk> 
Spattrum VtfrJV, Draoon. BBC. One. £k]t 

C*iak>sua hon jBS 41 IrVhvrnark Avanva 
London **22 60J 578 1 1 

l&\ l»K Maentna Coda Osmat Acterodt 
ln**daf* ScrartiW* Gala*t»n. D«(andar 
I' 1 M acen, Pucfcman, Phaonit. Kiarv-Kong. 
Frogoai (J.fifJ ascTl Ml 0. L- Swrwmcr. I 
Tcmcida Hoed, L>t»« Wqan L*nc». nM 
8Rh JMa*Drdaronivl S*t,<1 

BK ■ ten VIC JO Cnchat H> Hat mwig 
orapiuci FooKtcl Mmajw *■ 4 dtv**o>tt 
(1M aacrt ck fS 00 tor botti Soanoat, 
?30 Loimgfcngt Avanua, Silhnghcm. 
Osiralind TS23 3hje SB? II 



SPECTRUM EDUCATION 



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